View source for Politics of Colorado

{{Short description|US state politics}}
[[Colorado]] operates under a [[constitution]] adopted in 1876 and features both a traditional [[separation of powers|three-branch]] system of government and extensive [[direct democracy]] mechanisms, including citizen initiatives and referendums.

Colorado's political landscape has evolved significantly, transitioning from a [[swing state]] to a [[blue state]] in the early 21st century, though maintaining distinctive features like high voter participation and strong independent voting blocs. The state government consists of an executive branch led by the [[Governor of Colorado]], a bicameral [[Colorado General Assembly]], and a judiciary headed by the [[Colorado Supreme Court]]. 

Colorado was a pioneer in women's suffrage, becoming the second state to [[Women's suffrage in Colorado|grant women voting rights in 1893]] and the [[1893 Colorado women's suffrage referendum|first to do so by popular referendum]].<ref>{{cite book |last=Abbott |first=Carl |title=Colorado: A History of the Centennial State |year=2013 |publisher=University Press of Colorado |isbn=978-0870819346 |page=142}}</ref>

Notable aspects of Colorado politics include its robust ballot initiative system, which has produced significant reforms like the [[Taxpayer Bill of Rights]], and demographic shifts particularly in the [[Denver metropolitan area]] that have reshaped electoral patterns. The state has also pioneered various electoral innovations, including universal mail-in voting and being among the first states to legalize marijuana through popular vote.<ref name=":0" /><ref name=":1">{{Cite web |last1=Frank |first1=John |last2=Osgood |first2=Carrie |date=2020-11-10 |title=Colorado continues to shift blue: The 2020 election, explained in graphics |url=https://coloradosun.com/2020/11/10/colorado-2020-election-explained/ |access-date=2021-08-21 |website=[[The Colorado Sun]] |language=en}}</ref>

== Historical Development ==
=== Early Political History (1876–1920) ===
Colorado entered the Union as the 38th state in 1876, during a period of significant populist and progressive influence. In its early years, the state showed strong support for the [[People's Party (United States)|Populist Party]], electing several candidates to federal and state offices between the 1890s and 1910s.<ref name=":6">{{Cite book |last1=Cronin |first1=Thomas E. |url=https://books.google.com/books?id=bjHS5bV0tuUC&q=democrats+colorado+ |title=Colorado Politics and Policy: Governing a Purple State |last2=Loevy |first2=Robert D. |author2-link= Robert D. Loevy|date=2012 |publisher=University of Nebraska Press |isbn=978-0-8032-4489-4 |pages=21, 24 |language=en}}</ref>

The state's early political dynamics were significantly influenced by silver mining interests. The [[Sherman Silver Purchase Act]] of 1890, which required the federal government to purchase large quantities of silver, was particularly important to Colorado's economy and politics. The act was championed by Colorado Senator [[Henry M. Teller]], who later left the Republican Party over the gold standard issue. When President [[Grover Cleveland]] pushed for the act's repeal in 1893, it led to significant political upheaval in Colorado, contributing to the rise of the Populist movement and silver-based political coalitions.<ref>{{Cite book |last=Wright |first=James E. |title=The Politics of Populism: Dissent in Colorado |year=1974 |publisher=Yale University Press |isbn=978-0300017144 |pages=79-82}}</ref>

The subsequent [[Panic of 1893]] devastated Colorado's silver-based economy and reshaped the state's political landscape. Many miners and rural residents aligned with the Populist Party, which advocated for free silver coinage and economic reforms. This period marked one of the few times in American history where a third party achieved significant electoral success at the state level.<ref>{{Cite book |last=Larson |first=Robert W. |title=Populism in the Mountain West |year=1986 |publisher=University of New Mexico Press |isbn=978-0826308672 |pages=124-127}}</ref>
=== Mid-20th Century (1920–1990) ===
The state predominantly [[United States presidential elections in Colorado|voted Republican]] in presidential elections between 1920 and 1990, with only four Democratic victories during this period (1932, 1936, 1948, and 1964).<ref name=":4">{{Cite web |title=Colorado Presidential Election Voting History - 270toWin |url=https://www.270towin.com/states/Colorado |access-date=2023-03-06 |website=270toWin.com}}</ref> However, state-level politics often favored Democrats, who typically positioned themselves as more moderate than their national counterparts.<ref name=":6" /> 

=== Shifting Political Landscape (1990–Present) ===
{{PresHead|place=Colorado|source=<ref>{{cite web|url=https://uselectionatlas.org/RESULTS/compare.php?year=2008&fips=8&f=1&off=0&elect=0&type=state|title=Presidential General Election Results Comparison – Colorado|publisher=US Election Atlas|access-date=October 27, 2022|author=Leip, David}}</ref>}}
{{PresRow|2024|Democratic|1,377,441|1,728,159|87,145|Colorado}}
{{PresRow|2020|Democratic|1,364,607|1,804,352|88,021|Colorado}}
{{PresRow|2016|Democratic|1,202,484|1,338,870|238,893|Colorado}}
{{PresRow|2012|Democratic|1,185,243|1,323,102|63,501|Colorado}}
{{PresRow|2008|Democratic|1,073,629|1,288,633|39,200|Colorado}}
{{PresRow|2004|Republican|1,101,256|1,001,725|27,344|Colorado}}
{{PresRow|2000|Republican|883,745|738,227|119,393|Colorado}}
{{PresRow|1996|Republican|691,848|671,152|147,704|Colorado}}
{{PresRow|1992|Democratic|562,850|629,681|376,649|Colorado}}
{{PresRow|1988|Republican|728,177|621,453|22,764|Colorado}}
{{PresRow|1984|Republican|821,818|454,974|18,589|Colorado}}
{{PresRow|1980|Republican|652,264|367,973|164,178|Colorado}}
{{PresRow|1976|Republican|584,367|460,353|36,415|Colorado}}
{{PresRow|1972|Republican|597,189|329,980|26,715|Colorado}}
{{PresRow|1968|Republican|409,345|335,174|66,680|Colorado}}
{{PresRow|1964|Democratic|296,767|476,024|4,195|Colorado}}
{{PresRow|1960|Republican|402,242|330,629|3,375|Colorado}}
{{PresRow|1956|Republican|394,479|263,997|4,598|Colorado}}
{{PresRow|1952|Republican|379,782|245,504|4,817|Colorado}}
{{PresRow|1948|Democratic|239,714|267,288|8,235|Colorado}}
{{PresRow|1944|Republican|268,731|234,331|1,977|Colorado}}
{{PresRow|1940|Republican|279,576|265,554|3,874|Colorado}}
{{PresRow|1936|Democratic|181,267|295,021|12,396|Colorado}}
{{PresRow|1932|Democratic|189,617|250,877|17,202|Colorado}}
{{PresRow|1928|Republican|253,872|133,131|5,239|Colorado}}
{{PresRow|1924|Republican|195,171|75,238|71,851|Colorado}}
{{PresRow|1920|Republican|173,248|104,936|13,869|Colorado}}
{{PresRow|1916|Democratic|102,308|178,816|13,251|Colorado}}
{{PresRow|1912|Democratic|58,386|114,232|94,262|Colorado}}
{{PresRow|1908|Democratic|123,693|126,644|13,521|Colorado}}
{{PresRow|1904|Republican|134,661|100,105|8,901|Colorado}}
{{PresRow|1900|Democratic|93,072|122,733|5,603|Colorado}}
{{PresRow|1896|Democratic|26,271|161,005|2,263|Colorado}}
{{PresRow|1892|Populist|38,620|0|55,271|Colorado}}
{{PresRow|1888|Republican|50,772|37,549|3,625|Colorado}}
{{PresRow|1884|Republican|36,084|27,723|2,712|Colorado}}
{{PresFoot|1880|Republican|27,450|24,647|1,449|Colorado}}
Colorado's political landscape began shifting in the 1990s. The state passed significant voter initiatives including [[Term Limits]] (1990) and the [[Taxpayer Bill of Rights]] (TABOR) (1992).

Democrats have held the governorship for 24 of the past 32 years since 1991,<ref name=":5">{{Cite web |title=Former Governors - Colorado |url=https://www.nga.org/former-governors/colorado/ |access-date=2024-11-30 |website=National Governors Association}}</ref> and since 2008, the state has voted Democratic in five consecutive presidential elections—the party's longest such streak in Colorado's history.

In 2004, Democrats captured both chambers of the state legislature for the first time since 1963 and elected several Democrats like Ken Salazar while John Salazar and his Ed Perlmutter won U.S. seats. With the election of [[Bill Ritter]] as governor in 2006, Democrats won a [[Government trifecta|political trifecta]].

By the early 2010's, Colorado was considered a swing state and by 2016 was considered a blue-leaning swing state.<ref name=":6" />

Colorado has been trending Democratic since the early 2000s due to the rising percentage of young, college-educated, suburban, and unaffiliated voters leaning Democratic.<ref name=":02">{{Cite web |last=Kruegel |first=Evan |date=2020-11-05 |title=Is Colorado firmly a 'blue state'? Political experts weigh in |url=https://kdvr.com/news/politics/election/is-colorado-firmly-a-blue-state-political-experts-weigh-in/ |access-date=2021-12-29 |website=[[FOX31 Denver]] |language=en-US}}</ref><ref name=":12">{{Cite web |last1=Frank |first1=John |last2=Osgood |first2=Carrie |date=2020-11-10 |title=Colorado continues to shift blue: The 2020 election, explained in graphics |url=https://coloradosun.com/2020/11/10/colorado-2020-election-explained/ |access-date=2021-08-21 |website=[[The Colorado Sun]] |language=en}}</ref><ref name=":2">{{Cite web |last=Warwick |first=Ben |date=2020-11-10 |title=Colorado Has Gone From 'Swing' To 'Safe' In The Last 3 Presidential Elections |url=https://denver.cbslocal.com/2020/11/10/colorado-election-swing-state-safe-presidential-2020/ |access-date=2021-12-29 |website=[[CBS Denver]] |language=en-US}}</ref> The increased organization and perceived [[centrism]] of the state's Democratic Party has also been advanced as a reason for the political shift.<ref>{{Cite web |last1=Swanson |first1=Conrad Swanson |last2=Burness |first2=Alex Burness |date=2020-12-20 |title=What happened to the Colorado Republican Party? |url=https://www.denverpost.com/2020/12/20/colorado-republican-party-what-happened/ |access-date=2024-06-06 |website=The Denver Post |language=en-US}}</ref><ref>{{Cite book |last1=Cronin |first1=Thomas E. |url=https://books.google.com/books?id=bjHS5bV0tuUC&q=democrats+colorado+ |title=Colorado Politics and Policy: Governing a Purple State |last2=Loevy |first2=Robert D. |date=2012 |publisher=University of Nebraska Press |isbn=978-0-8032-4489-4 |language=en}}</ref><ref>{{Cite book |last1=Schrager |first1=Adam |url=https://books.google.com/books?id=StZWAAAAYAAJ |title=The Blueprint: How the Democrats Won Colorado (and why Republicans Everywhere Should Care) |last2=Witwer |first2=Rob |date=2010 |publisher=Speaker's Corner Books |isbn=978-1-936218-00-4 |language=en}}</ref> The growing social and religious conservative shift of the state's Republican Party has also been cited as a reason for the changing voting patterns of Colorado, along with the party shifting right-ward politically.<ref name=":3">{{Cite web |last=Park |first=Catherine |date=2020-09-08 |title='Purple' Colorado could go blue in 2020 election as younger voters flock to state, experts say |url=https://www.fox5ny.com/news/purple-colorado-could-go-blue-in-2020-election-as-younger-voters-flock-to-state-experts-say |access-date=2021-12-29 |website=[[WNYW|Fox 5]] |language=en-US}}</ref><ref>{{Cite web |last=Paul |first=Jesse |date=2020-11-12 |title=Where do Colorado Republicans go from here? |url=http://coloradosun.com/2020/11/12/colorado-republican-party-future/ |access-date=2022-11-26 |website=[[The Colorado Sun]] |language=en-US}}</ref>

The year 2018 saw the state undergo a political shift. In the [[2018 Colorado elections|2018 state elections]], Democrats gained control of the state Senate, won all the constitutional statewide offices (including the governorship), and expanded their majority in the state House. They also gained a numerical majority for the U.S. House delegation.<ref>{{Cite web |last=Herrick |first=John |date=2018-11-07 |title=Democrats take the Colorado Senate |url=https://www.coloradoindependent.com/2018/11/06/senate-battleground-party-control/ |access-date=2021-12-29 |website=[[The Colorado Independent]] |language=en-US}}</ref> By 2020, Colorado was considered a safe blue state, with Joe Biden winning by more than 13% over Donald Trump.<ref name=":1" />

In 2024, Kamala Harris won Colorado by around a 11% margin, re-affirming the status of Colorado as a solidly blue state. Demographic change and the expansion of Denver's suburbs into Republican-leaning counties have increasingly contributed to the Democratic shift. While several suburban [[Front Range urban corridor|Front Range]] counties like [[Jefferson County, Colorado|Jefferson]] continued trending Democratic, with [[Kamala Harris]] improving on [[Joe Biden]]'s 2020 margins, turnout declined significantly in Democratic strongholds like Denver and [[Adams County, Colorado|Adams County]] which affected the margin of victory. Additionally, southern parts of the state, particularly counties with large Latino populations like [[Pueblo County|Pueblo]] and those in the [[San Luis Valley]], saw notable shifts toward Republicans.<ref>{{Cite web|last=Woodruff|first=Chase|date=2024-11-14|title=How lower turnout and uneven red wave shaped Colorado's 2024 election results|url=https://coloradonewsline.com/2024/11/14/lower-turnout-uneven-red-wave-colorado/|access-date=2024-11-30|website=[[Colorado Newsline]]|language=en}}</ref>

== State Government ==
=== Constitution ===
The [[Constitution of Colorado]] was drafted in March 1876 and ratified by Colorado's voters on July 1, 1876, taking effect upon Colorado's admission to statehood on August 1, 1876.<ref>{{cite web |title=Colorado Constitution |url=https://leg.colorado.gov/colorado-constitution |website=Colorado General Assembly |access-date=2024-03-25}}</ref> The constitution establishes the structure and function of the state government and outlines the basic rights of Colorado citizens. It has been amended numerous times through both legislative referral and citizen initiative processes.<ref>{{cite book |last=Cronin |first1=Thomas E. |last2=Loevy |first2=Robert D. |title=Colorado Politics and Policy: Governing a Purple State |year=2012 |publisher=University of Nebraska Press |isbn=978-0-8032-4489-4 |pages=45-47}}</ref>

=== Executive Branch ===
[[File:Jared Polis Official 2012.jpg|thumb|295x295px|Democrat [[Jared Polis]] is the current incumbent Governor of Colorado.]]
Colorado has elected 17 [[Democratic Party (United States)|Democrats]] and 12 [[Republican Party (United States)|Republicans]] to the governorship in the last 100 years. Incumbent Governor [[Jared Polis]] was elected in 2018. Polis and his predecessor, former Governor (now Senator) [[John Hickenlooper]] are both Democrats.<ref>{{cite web |title=Former Governors of Colorado |url=https://www.nga.org/former-governors/colorado/ |website=National Governors Association |access-date=2024-03-25}}</ref>

=== Legislative Branch ===
The Colorado Senate is the upper house of the [[Colorado General Assembly]], composed of 35 seats representing approximately 143,000 people each. Senators are constitutionally limited to two consecutive four-year terms. The Senate is currently composed of 23 Democrats and 12 Republicans. The Senate is led by [[President of the Senate]] [[James Coleman (politician)|James Coleman]], [[Majority Leader]] [[Robert Rodriguez (politician)|Robert Rodriguez]], and [[Minority Leader]] [[Paul Lundeen]].

The Colorado House of Representatives is the lower house of the Colorado General Assembly, composed of 65 seats of approximately 77,000 people each. Representatives are constitutionally limited to four consecutive two-year terms. The House is currently composed of 46 Democrats and 19 Republicans and is led by [[Speaker (politics)|Speaker of the House]] [[Julie McCluskie]], Majority Leader [[Monica Duran]], and Minority Leader [[Rose Pugliese]].

=== Judicial Branch ===
The [[Colorado Supreme Court]] is the state's highest court, consisting of seven justices who serve ten-year terms. The Chief Justice is selected by the court from amongst its members and serves as the executive head of the Colorado Judicial Branch. Justices are appointed by the governor from a list of three qualified candidates nominated by the Supreme Court Nominating Commission, and must stand for retention by voters in the next general election after serving a provisional two-year term.<ref>{{cite web |title=About the Supreme Court |url=https://www.courts.state.co.us/Courts/Supreme_Court/About.cfm |website=Colorado Judicial Branch |access-date=2024-03-25}}</ref>

The [[Colorado Court of Appeals]] is the state's intermediate appellate court, consisting of 22 judges who serve eight-year terms. The court hears cases in three-judge panels and primarily reviews decisions from the state's district courts.<ref>{{cite web |title=Court of Appeals |url=https://www.courts.state.co.us/Courts/Court_Of_Appeals/ |website=Colorado Judicial Branch |access-date=2024-03-25}}</ref>

Colorado's trial court system consists of district courts, county courts, and various specialized courts. The state is divided into 22 judicial districts, each with its own district court that handles civil cases involving more than $15,000, felony criminal cases, juvenile matters, and appeals from county courts. County courts handle civil cases under $15,000, misdemeanors, traffic infractions, and small claims.<ref>{{cite web |title=Colorado Courts at a Glance |url=https://www.courts.state.co.us/Courts/Overview.cfm |website=Colorado Judicial Branch |access-date=2024-03-25}}</ref>

In 2024, voters approved Amendment H, which established an independent judicial discipline commission to investigate complaints against judges, replacing the previous system where discipline was handled internally by the Supreme Court.<ref>{{cite web |title=Colorado voters approve independent commission to discipline judges |url=https://www.denverpost.com/2024/11/05/colorado-amendment-h-results/ |website=The Denver Post |date=2024-11-05 |access-date=2024-11-30}}</ref>
=== Direct Democracy ===
Colorado has a strong tradition of direct democracy through initiatives, referendums, and recall elections. The state constitution reserves these powers explicitly for the people:<ref name="ReferenceA">Section 1, Article V, Constitution of Colorado</ref>

<blockquote>...the people reserve to themselves the power to propose laws and amendments to the constitution and to enact or reject the same at the polls independent of the general assembly and also reserve power at their own option to approve or reject at the polls any act or item, section, or part of any act of the general assembly.</blockquote>

Significant initiatives have included Term Limits (1990), the [[Taxpayer Bill of Rights]] (TABOR) (1992), and Amendment 23 (2000), which set a fixed percentage of the budget for K-12 education. Voters passed Referendum C in 2005, amending some restrictions of TABOR and Amendment 23.<ref>{{cite web|url= http://uselectionatlas.org/RESULTS/state.php?fips=8&year=2005&f=0&off=50&elect=7|title=2005 Referendum Special Election Results|work=U.S. Election Atlas|date=2007-05-11|access-date=2008-06-05}}</ref>

== Recent Events ==

=== 2024 Ballot Measures ===
In 2024, Colorado voters passed several significant constitutional amendments that reflected the state's evolving political landscape:<ref>{{cite web |title=Colorado's 2024 ballot questions: What passed and what failed |url=https://www.cpr.org/2024/11/05/colorado-2024-ballot-question-results/ |website=Colorado Public Radio |author=Verlee, Megan |date=2024-11-05 |access-date=2024-11-07}}</ref>

* [[2024 Colorado Amendment 79|Amendment 79]] enshrined a right to legal abortion in the state constitution and lifted a 40-year ban on public funding for abortion
* [[2024 Colorado Amendment J|Amendment J]] removed the 2006 same-sex marriage ban from the state constitution
* [[2024 Colorado Amendment G|Amendment G]] expanded property tax exemptions for disabled veterans
* [[2024 Colorado Amendment H|Amendment H]] established an independent judicial discipline board
* [[2024 Colorado Amendment I|Amendment I]] prohibited bail for first-degree murder defendants

Several citizen initiatives also passed in 2024, including:
* [[2024 Colorado Proposition 128|Proposition 128]], which increased minimum prison time served for violent crimes
* [[2024 Colorado Proposition 130|Proposition 130]], which established dedicated funding for law enforcement
* [[2024 Colorado Proposition KK|Proposition KK]], which created a new excise tax on firearms and ammunition sales

Notably, voters rejected [[2024 Colorado Proposition 131|Proposition 131]], which would have fundamentally changed the state's election system by eliminating party primaries in favor of a top-four primary system and implementing ranked-choice voting for general elections. The proposed system would have allowed voters to rank candidates in order of preference, with the winner determined through an instant runoff process. The measure's defeat maintained Colorado's traditional party primary system.<ref>{{cite web |title=Proposition 131: Ranked Choice Voting Results |url=https://www.cpr.org/2024/11/05/proposition-131-ranked-choice-voting-results/ |website=Colorado Public Radio |date=2024-11-05 |access-date=2024-11-30}}</ref>

=== 2024 Supreme Court Case ===
In 2024, Colorado became the center of a major constitutional controversy when its Supreme Court ruled in ''[[Anderson v. Griswold]]'' that former President Donald Trump was ineligible to appear on the state's primary ballot under Section 3 of the Fourteenth Amendment due to his actions during the [[January 6 United States Capitol attack]].<ref>{{cite web |title=Colorado Supreme Court disqualifies Trump from 2024 primary ballot |url=https://www.coloradosun.com/2023/12/19/colorado-supreme-court-trump-14th-amendment/ |website=The Colorado Sun |date=2023-12-19 |access-date=2024-11-30}}</ref>

The case, which reached the U.S. Supreme Court as ''[[Trump v. Anderson]]'', resulted in a unanimous decision that states lack the authority to disqualify federal candidates under the Fourteenth Amendment.<ref>{{cite web |title=Supreme Court rules states cannot remove Trump from ballot under 14th Amendment |url=https://www.cpr.org/2024/03/04/supreme-court-trump-14th-amendment-colorado-ballot/ |website=Colorado Public Radio |date=2024-03-04 |access-date=2024-03-25}}</ref> The ruling highlighted Colorado's role in testing constitutional boundaries and demonstrated the state's willingness to engage in significant national political disputes. The case also sparked intense debate within Colorado about the proper role of state courts in federal election matters.<ref>{{cite web |title=Trump v. Anderson: What the Supreme Court's ruling means for Colorado |url=https://www.denverpost.com/2024/03/04/trump-anderson-supreme-court-ruling-colorado/ |website=The Denver Post |date=2024-03-04 |access-date=2024-11-30}}</ref>
=== 2024 Congressional Special Election ===
{{Main article|2024 Colorado's 4th congressional district special election}}
In March 2024, Representative [[Ken Buck]]'s resignation in the [[Colorado's 4th congressional district|4th Congressional District]] triggered a special election to fill the vacancy, the first time since 1983 such an election was held in the state.<ref>{{Cite web |date=2024-03-13 |title=Colorado's having a congressional vacancy election. How does that work? |url=https://www.cpr.org/2024/03/13/colorado-congressional-district-four-vacancy-election-how-work/ |access-date=2024-11-30 |website=Colorado Public Radio |language=en}}</ref><ref>{{cite web |title=Rep. Ken Buck to leave office early |url=https://www.cpr.org/2024/03/12/rep-ken-buck-to-leave-office-early/ |website=Colorado Public Radio |date=2024-03-12 |access-date=2024-11-30}}</ref>

Rather than using primary elections, candidates were chosen through party committees - with a 111-member Republican committee and a Democratic convention selecting their respective nominees.<ref>{{cite web |title=Colorado Republicans to pick nominee for special election to fill Ken Buck's vacant US House seat |url=https://coloradopolitics.com/colorado-republicans-to-pick-nominee-for-special-election/ |website=Colorado Politics |date=2024-03-28 |access-date=2024-11-30}}</ref> 

Following the selection of [[Trisha Calvarese]] as the Democratic nominee for the June 25 special election, a legal challenge was filed questioning her eligibility in an attempt to block her nomination. The lawsuit, filed by a Democrat from [[Castle Rock, Colorado|Castle Rock]] against Secretary of State [[Jena Griswold]], alleged that Calvarese was ineligible under state law 1-4-402, which requires party candidates to be affiliated with their party for twelve consecutive months prior to nomination. Calvarese, who was a native of the district but previously had been registered in Pennsylvania, registered as a Democrat in Colorado in December 2023, less than four months before her nomination.<ref>{{cite web |title=Trisha Calvarese's selection as Democratic nominee for CD4 special election challenged in court |url=https://coloradosun.com/2024/04/11/trisha-calvarese-ken-buck-lawsuit-challenge/ |website=The Colorado Sun |date=2024-04-11 |access-date=2024-11-30}}</ref>

The Colorado Democratic Party defended Calvarese's nomination, arguing that while state law appeared to impose a residency requirement, only the U.S. Constitution's requirements for congressional candidates were relevant. Party Chair [[Shad Murib]] stated that party rules only required candidates to be Democrats for 12 months before the convention, which Calvarese claimed she met through her previous Democratic registration in Pennsylvania.<ref>{{cite web |title=Trisha Calvarese's selection as Democratic nominee for CD4 special election challenged in court |url=https://coloradosun.com/2024/04/11/trisha-calvarese-ken-buck-lawsuit-challenge/ |website=The Colorado Sun |date=2024-04-11 |access-date=2024-11-30}}</ref>

The election, held on June 25, 2024, demonstrated the district's strong Republican lean, with Republican nominee [[Greg Lopez]] winning 57% of the vote compared to Democratic nominee Trisha Calvarese's 36%. Two minor-party candidates, [[Libertarian Party (United States)|Libertarian]] [[Hannah Goodman (Politician)|Hannah Goodman]] and [[Approval Voting Party]] nominee [[Frank Atwood (Politician)|Frank Atwood]], also appeared on the ballot.<ref>{{cite web |title=Greg Lopez wins special election to fill out remainder of former Rep. Ken Buck's term |url=https://coloradonewsline.com/2024/06/25/greg-lopez-wins-special-election-to-fill-out-remainder-of-former-rep-ken-bucks-term/ |website=Colorado Newsline |author=Woodruff, Chase |date=2024-06-25 |access-date=2024-11-30}}</ref> Lopez, who described himself as a "placeholder" candidate, indicated he would only serve for the remainder of Buck's term, which expires in January 2025, and would not run in the primary election for the subsequent term.

In a simultaneous Democratic primary, Calvarese defeated [[Ike McCorkle (Politician)|Ike McCorkle]] and [[John Padora (Politician)|John Padora]] to secure the nomination for the November general election. [[Lauren Boebert]], who had moved from [[Colorado's 3rd congressional district|CD3]], secured the Republican nomination with 43% of the vote against a field of 5 opponents, including former state senator [[Jerry Sonnenberg]] who finished second with 14.3% and controversial conservative radio host [[Deborah Flora (Politician)|Deborah Flora]] who placed third with 13.8%.<ref>{{cite web |title=Lauren Boebert wins crowded House GOP primary in new Colorado district |url=https://www.cbsnews.com/colorado/news/lauren-boebert-wins-colorado-4th-congressional-district-republican-primary/ |website=CBS News Colorado |date=2024-06-26 |access-date=2024-11-30}}</ref>

== Federal Representation ==
{{Elections in Colorado sidebar}}
The state is represented in the United States Senate by Democrats [[John Hickenlooper]] and [[Michael Bennet]] serving since 2021 and 2010, respectively.

=== 118th Congress ===
Colorado has eight seats in the [[United States House of Representatives]] since the 2020 reapportionment. Currently, five seats are held by Democrats and three by Republicans. The state's congressional delegation includes:

* [[Colorado's 1st congressional district]] - Democrat [[Diana DeGette]] (Denver area)
* [[Colorado's 2nd congressional district]] - Democrat [[Joe Neguse]] (Boulder area)
* [[Colorado's 3rd congressional district]] - Republican [[Jeff Hurd (politician)|Jeff Hurd]] (Western Slope)
* [[Colorado's 4th congressional district]] - Republican [[Lauren Boebert]] (Eastern Plains)
* [[Colorado's 5th congressional district]] - Republican [[Jeff Crank]] (Colorado Springs)
* [[Colorado's 6th congressional district]] - Democrat [[Jason Crow]] (Aurora)
* [[Colorado's 7th congressional district]] - Democrat [[Brittany Pettersen]] (Jefferson County)
* [[Colorado's 8th congressional district]] - Republican [[Gabe Evans]] (North Denver suburbs)

=== 119th Congress ===
In the 2024 general election, Lauren Boebert defeated Democrat Trisha Calvarese in the [[Colorado's 4th congressional district|4th congressional district]], having moved from [[Colorado's 3rd congressional district|CD3]] to run in the new district.

In Boebert's former district, Republican [[Jeff Hurd]] defeated Democrat [[Adam Frisch]] to win the open seat. Frisch, who had narrowly lost to Boebert in 2022 by just 546 votes, conceded the race on November 6th. Hurd, a Grand Junction attorney and small business owner, had won the Republican primary with 41% of the vote and campaigned on creating economic opportunities in rural Colorado.<ref>{{cite web |title=Adam Frisch concedes to Jeff Hurd in Colorado's 3rd Congressional District |url=https://www.cbsnews.com/colorado/news/jeff-hurd-3rd-congressional-district-election-colorado-adam-frisch/ |website=CBS News Colorado |date=2024-11-06 |access-date=2024-11-30}}</ref>

In a close race, Democrat [[Yadira Caraveo]] lost her seat in the [[Colorado's 8th congressional district|8th congressional district]] to Republican challenger [[Gabe Evans]]. With over 95% of votes counted, Evans received 162,022 votes (49%) to Caraveo's 159,426 (48.2%), a margin of fewer than 2,600 votes. Approval Voting Party candidate [[Chris Baum (Politician)|Chris Baum]] received 5,699 votes (1.7%) and [[Unity Party of America|Unity Party]] candidate [[Susan Hall (American Politician)|Susan Hall]] received 3,645 votes (1.1%). Caraveo conceded the race on November 10th, thanking her supporters and pledging to continue serving through the end of her term.<ref>{{cite web |title=Rep. Caraveo concedes in Colorado District 8 fight |url=https://thehill.com/homenews/state-watch/4983400-rep-caraveo-concedes-in-colorado-district-8-fight/ |website=The Hill |date=2024-11-10 |access-date=2024-11-30}}</ref>

These shifts brought the Democratic majority in the state's congressional delegation to an end for the first time since 2018. However, Colorado largely bucked the national Republican wave in 2024, with Democratic Vice President Kamala Harris winning the state with 54.4% of the vote compared to Trump's 43.1%. Analysts attributed Colorado's Democratic resilience to several factors, including its highly educated and urbanized population, low religiosity, and voters being less singularly focused on inflation compared to other states. While the state saw some rightward movement among Latino voters following national trends, this was offset by Democratic gains among white voters. The state's demographic makeup and focus on issues beyond just the economy helped maintain its overall Democratic lean despite Republican gains in congressional races.<ref>{{cite web |title=How Colorado 'bucked the trend' amid 2024's nationwide Republican wave |url=https://coloradonewsline.com/2024/11/08/colorado-bucked-the-trend-2024/ |website=Colorado Newsline |author=Woodruff, Chase |date=2024-11-08 |access-date=2024-11-30}}</ref>

== Political Dynamics ==
=== Regional Differences ===
Colorado's political geography shows distinct regional patterns. Democratic strength is concentrated in:
* The City of [[Denver]] and its nearby suburbs
* [[Boulder County]]
* [[Fort Collins]]
* Parts of the [[Interstate 70|I-70]] corridor
* The [[San Luis Valley]]
* Mountain resort communities ([[Pitkin County, Colorado|Pitkin]], [[Eagle County, Colorado|Eagle]], [[La Plata County, Colorado|La Plata]], [[Routt County, Colorado|Routt]])<ref>{{Cite web |last=Best |first=Allen |date=16 November 2014 |title=Ski towns mostly stay on blue side |url=https://www.summitdaily.com/news/regional/ski-towns-mostly-stay-on-blue-side/ |access-date=2022-11-26 |website=Summit Daily News |language=en-US}}</ref>

Republican strength is found in:
* The eastern plains (the most Republican part of the state)
* [[El Paso County, Colorado|El Paso County]] (Colorado Springs)
* [[Douglas County, Colorado|Douglas County]]
* The Western Slope near [[Grand Junction, Colorado|Grand Junction]]
* High mountain communities in the center of the state

Denver's suburban counties, including [[Adams County, Colorado|Adams]], [[Arapahoe County, Colorado|Arapahoe]], [[Jefferson County, Colorado|Jefferson]], [[Broomfield, Colorado|Broomfield]], and [[Larimer County, Colorado|Larimer]], have increasingly trended Democratic in recent elections.<ref name=":1" />

=== Urban-Rural Divide ===
[[Denver]], designated as Colorado's [[Colorado Territory|territorial capital]] in 1867, was formally established as the state capital when Colorado achieved [[Colorado Statehood Proclamation|statehood]] in 1876. The capital's location was contentious in the state's early years, with several other cities, including [[Colorado Springs]], [[Golden, Colorado|Golden]], [[Boulder, Colorado|Boulder]] and [[Georgetown, Colorado|Georgetown]] vying for the designation. The matter was settled by a [[1881 Colorado state capital referendum|statewide referendum in 1881]] that confirmed Denver as the permanent capital.<ref>{{Cite book |last=Abbott |first=Carl |title=Colorado: A History of the Centennial State |year=2013 |publisher=University Press of Colorado |isbn=978-0870819346 |pages=89-90}}</ref>

Denver's role as the state capital significantly influenced Colorado's political development. The city's rapid growth in the late 19th century, driven by mining, railroad expansion, and its position as a governmental center, established it as the state's primary political hub. This centralization of political power sometimes created tensions between Denver and rural areas, particularly during debates over water rights and resource allocation.<ref>{{Cite book |last=Leonard |first=Stephen J. |last2=Noel |first2=Thomas J. |title=Denver: Mining Camp to Metropolis |year=1990 |publisher=University Press of Colorado |isbn=978-0870812408 |pages=123-125}}</ref>

The capital's political influence grew substantially during the 20th century as Denver's metropolitan area expanded. By the early 21st century, the Denver metropolitan area contained nearly half of Colorado's population, making it increasingly decisive in statewide elections and policymaking.

This urban-rural divide is particularly evident in water politics, which has been a defining issue in Colorado's political landscape since its founding. The state's water rights are governed by the prior appropriation doctrine ("first in time, first in right"), which has created ongoing tensions between urban and agricultural users, especially as urbanization in the Denver suburbs has increased demand for water.<ref>{{Cite book |last=Hobbs |first=Gregory J. |title=Citizen's Guide to Colorado Water Law |year=2015 |publisher=Colorado Foundation for Water Education |isbn=978-0985235543 |pages=7-12}}</ref>

=== Water Politics and Interstate Relations ===
Colorado's position as a headwater state for several major river systems, including the [[Colorado River]], [[Arkansas River]], and [[South Platte River]], makes it central to interstate water politics. The state is party to nine interstate water compacts, which legally bind Colorado to deliver specific amounts of water to downstream states.

The [[Colorado River Compact|Colorado River Compact of 1922]], perhaps the most significant of these agreements, requires upper basin states (Colorado, [[Wyoming]], [[Utah]], and [[New Mexico]]) to deliver 7.5 million acre-feet of water annually to lower basin states ([[California]], [[Arizona]], and [[Nevada]]). As climate change reduces water availability and urban growth increases demand, this requirement has become increasingly contentious, leading to complex political negotiations and occasional legal disputes between states.<ref>{{cite book |last=Sibley |first=George |title=Water in the West: A High Country News Reader |year=2012 |publisher=Oregon State University Press |isbn=978-0870716874 |pages=45-67}}</ref>

The agricultural communities of Colorado's [[Eastern Plains|eastern plains]], particularly farmers and ranchers, have been significantly impacted by water rights issues and aquifer depletion. These stakeholders often find themselves competing not only with urban water demands from the Front Range, but also with neighboring states' water usage patterns.

A major concern is the depletion of the [[Ogallala Aquifer]], which extends beneath eastern Colorado and several neighboring states, including Nebraska. While Colorado has implemented various conservation measures and strict well-permitting processes, Nebraska's less restrictive policies regarding aquifer usage have led to tensions between the two states. In 2022, Nebraska proposed building a $500 million canal and reservoir system to divert water from the [[South Platte River]] in Colorado, citing a [[South Platte River Compact|1923 water compact]] between the states. This escalated tensions over water rights, with Nebraska claiming the project was necessary to protect its agricultural interests while Colorado officials expressed concerns about the impact on their state's water supply. The dispute highlighted the growing pressures on water resources in both states, as Nebraska's agricultural sector continues to draw heavily from the aquifer, with withdrawal rates often exceeding natural recharge rates. This has resulted in declining water tables that affect Colorado farmers near the state border, where the aquifer's depletion is particularly evident.<ref>{{cite web |title=Colorado-Nebraska water fight over Ogallala Aquifer heats up |url=https://www.cnn.com/2022/08/06/us/drought-water-canal-colorado-nebraska-climate/index.html |website=CNN |date=2022-08-07 |access-date=2024-11-30}}</ref>

The situation exemplifies the complex interplay between state water rights, agricultural sustainability, and interstate water management. Colorado farmers and ranchers in the region have had to adapt through various means, including implementing more efficient irrigation systems, shifting to less water-intensive crops, and in some cases, reducing cultivated acreage.<ref>{{cite book |last=Opie |first=John |title=Ogallala: Water for a Dry Land |year=2018 |publisher=University of Nebraska Press |isbn=978-1496201799 |pages=167-189}}</ref>

=== Voter Demographics ===
As of 2022, unaffiliated voters comprise over 40% of Colorado's electorate, with these voters typically favoring Democratic candidates in recent elections.<ref>{{Cite web |date=2022-11-15 |title=Colorado's getting bluer even though it's gotten more purple |url=https://kdvr.com/news/politics/election/is-trump-to-blame-for-colorado-unaffiliated-voters-swinging-blue/ |access-date=2022-11-26 |website=[[FOX31 Denver]] |language=en-US}}</ref> The state's growing population of young, college-educated, and suburban voters has contributed to its Democratic shift.<ref name=":0">{{Cite web |last=Kruegel |first=Evan |date=2020-11-05 |title=Is Colorado firmly a 'blue state'? Political experts weigh in |url=https://kdvr.com/news/politics/election/is-colorado-firmly-a-blue-state-political-experts-weigh-in/ |access-date=2021-12-29 |website=[[FOX31 Denver]] |language=en-US}}</ref>

== See also ==
* [[Elections in Colorado]]
* [[Government of Colorado]]
* [[Political party strength in Colorado]]

== References ==
{{Reflist}}

== External links ==
{{sister project links}}
* [http://uselectionatlas.org/RESULTS/state.php?fips=8&f=0&off=99 Elections in Colorado on U.S. Election Atlas website]
*{{Ballotpedia|Colorado|Colorado}}

{{Colorado}}
{{Politics in the United States}}
{{Authority control}}

[[Category:Politics of Colorado| ]]