|Founded||July 23, 2000|
|Political position||Right-wing to far-right|
|National affiliation||Constitution Party|
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The American Constitution Party (ACN) is one of the state of Colorado's political parties. It is affiliated with the national-level Constitution Party, a conservative political party in the United States that says it bases most of its policy positions on the Constitution.  The party asserts that the US is a Christian nation founded on the Bible and that American jurisprudence should be restored to what the party claims is its "Biblical foundations".  The ACN qualified for major party status in Colorado after receiving more than 36% of the vote in the 2010 gubernatorial election.  As the party did not field a candidate in the 2014 election, it reverted to minor party status. 
The American Constitution Party registered as a political party with the state of Colorado on July 23, 2000.  In July 2013, the ACN had just over 7,000 registered Colorado voters affiliated with it.  Some of the party's positions include:
- ACN members ... call for the abolition of the Food and Drug Administration, the Internal Revenue Service, the departments of Education and Energy and the Federal Election Commission. They seek the repeal of a number of laws, including one aimed at preventing threats and force against abortion clinics and women seeking abortions and a 1960s-era law meant to end discriminatory election practices. 
For most of its existence, the ACN has existed as one of Colorado's "minor parties", and has never elected one of its candidates to office.
The American Constitution Party of Colorado seeks to: 
- Allow state legislatures, not voters, to pick U.S. senators (i.e., repeal the 17th Amendment)
- Repeal legislation making it illegal to use force or the threat of force to interfere with a woman seeking an abortion
- Abolish congressional pensions
- End the Endangered Species Act
- Terminate the U.S. Departments of Energy and Education, the Food and Drug Administration, the Federal Election Commission and the Internal Revenue Service
- Ban electronic voting to prevent voter fraud
- Repeal all federal campaign-finance laws
- Repeal the Voting Rights Act of 1965
- End compulsory public school attendance and promote homeschooling, private schools or religious schools
- End any domestic federal aid not provided for in the U.S. Constitution, as it is "not only illegal, it is immoral"
- End foreign aid and participation in multinational groups, such as the United Nations, as well as multinational treaties
- Retake the Panama Canal for the United States
- Prevent women from serving in combat as "these 'advances' undermine the integrity, morale and performance of our military organizations"
- "Cease financing or arming of belligerents in the world's troubled areas"
- Return to the people all federal lands held by the government without constitutional authorization
- Revoke the legalization of the union of gay couples in either marriages or civil unions
- Immediately collect all foreign debts owed to the U.S.
Under state law, the American Constitution Party's vote share in the 2010 gubernatorial election elevated the party from "minor" to "major" party status. Any party that earns 10% or more of the votes cast for governor is a defined under statute as a "major party". Major party status gives the party a place at or near the top of the ballot in the 2014 gubernatorial election.
Former Republican Congressman Tom Tancredo ran as the party's candidate for Colorado governor in 2010 after the campaign of Republican Party nominee Dan Maes collapsed politically. He won around 36% of the vote, receiving more than 2.5 times the vote of Republican Party nominee Maes.  Democratic candidate John Hickenlooper won the election with just over 51% of the vote.
|Independent||Jason R. Clark||8,576||0.48%|
After the election, Tancredo quickly rejoined the Republican Party, disappointing an ACN leadership struggling to contend with major party status and how to successfully leverage the increased attention the party had received because of his candidacy. 
Although the American Constitution Party's political and organizational sophistication did not grow despite the attention brought to it by Tancredo's 2010 gubernatorial candidacy, the party has fielded more candidates in the 2010 and 2012 cycles than it had in the entirety of the previous decade. 
|2014||Adams County Sheriff||James Fariello|
|2014||Mesa County Assessor||Steve Henderson|
|2013||Steamboat Springs School Board||Joseph Andrew|
|2012||Adams County Commissioner||James Fariello|
|2012||Colorado House, District 14||Ryan Dyer|
|2012||Colorado House, District 14||Thomas O'dell|
|2012||Colorado House, District 15||Michael Edstrom|
|2012||Colorado House, District 16||David Rawe|
|2012||Colorado House, District 17||Barry Pace|
|2012||Colorado House, District 18||Amy Fedde|
|2012||Colorado House, District 19||Timothy Biolchini|
|2012||Colorado House, District 20||Donna Burdick|
|2012||Colorado House, District 21||Sean Halstead|
|2012||Colorado House, District 61||Robert Petrowsky|
|2012||Colorado Senate, District 10||Christopher Mull|
|2012||Colorado Senate, District 12||James Bristol|
|2012||CU Regent, At-Large||Tyler Belmont|
|2012||CU Regent, At-Large||Brian Scott|
|2012||CU Regent, District 5||Gina Biolchini|
|2012||El Paso County Commissioner||Kathy Payne|
|2010||Adams County Sheriff||James Fariello|
|2010||Colorado Senate, District 31||Clifton Powell|
|2010||Lt. Governor||Patricia Miller|
|2010||Motezuma County Sheriff||Gerald Wallace|
|2010||Secretary of State||Amanda Campbell|
|2008||Colorado House, District 27||Amanda Campbell|
|2008||Colorado House, District 37||Brian Olds|
|2008||Park County Commissioner||Zdenko Novkovic|
|2006||Colorado House, District 53||Darren Morrison|
|2006||Colorado Senate, District 16||Tim Leonard|
|2006||CU Regent, At-Large||Douglas "Dayhorse" Campbell|
|2006||La Plata County Commissioner||Padraig Lynch|
|2006||Lt. Governor||Tracy Davison|
|2002||Attorney General||Gaar Potter|
|2002||Colorado House||Paul Berthelot|
|2002||Colorado House, District 57||Dr. Zane Newitt|
|2002||Lt. Governor||Desiree Hickson|
- Politics of Colorado
- Electoral history of the Constitution Party
- Constitution Party (United States) federal candidates in 2010
- List of state Constitution Parties
- Carrie Budoff; Thomas Fitzgerald (August 8, 2004). "Candidate counts on anger at Specter Democrats are hoping that James Clymer, of the Constitution Party, will draw off enough conservative support to boost Hoeffel's chances". The Philadelphia Inquirer. Retrieved 20 October 2013.
- Preamble to Constitution Party Platform "The Constitution Party gratefully acknowledges the blessing of our Lord and Savior Jesus Christ as Creator, Preserver and Ruler of the Universe and of these United States. We hereby appeal to Him for mercy, aid, comfort, guidance and the protection of His Providence as we work to restore and preserve these United States. This great nation was founded, not by religionists, but by Christians; not on religions but on a foundation of Christian principles and values. For this very reason peoples of all faiths have been and are afforded asylum, prosperity, and freedom of worship here. The goal of the Constitution Party is to restore American jurisprudence to its Biblical foundations and to limit the federal government to its Constitutional boundaries."
- "Archived copy". Archived from the original on 2010-11-21. Retrieved 2010-11-24.CS1 maint: Archived copy as title ( link)
- "Political Party Directory". www.sos.state.co.us. Retrieved 2017-07-21.
- "TRACER - Committee Detail". tracer.sos.colorado.gov. Retrieved 2017-09-05.
- Colorado Secretary of State: Voter Registration Statistics
- Jessica Fender, "Tancredo's new party way out in right field", The Denver Post, July 27, 2010.
- Constitution Party 2012 National Platform Archived February 9, 2014, at the Wayback Machine
- Steven K. Paulson, "ACN Not Relishing Role As Colorado Major Party", Associated Press, May 8, 2011.]
- Patricia Calhoun, "American Constitution Party faces major headaches as a major Colorado party", Westword Magazine blogs; March 6, 2012.
- http://www.sos.state.co.us/pubs/electionresults2010/general/ColoradoReport.html[ permanent dead link]
- Peter Marcus, "American Constitution Party feels majorly scorned by Tancredo", The Colorado Statesman; October 12, 2012
- Colorado Secretary of State