2024 United States presidential election in Colorado

The 2024 United States presidential election in Colorado is scheduled to take place on Tuesday, November 5, 2024, as part of the 2024 United States elections in which all 50 states plus the District of Columbia will participate. Colorado voters will choose electors to represent them in the Electoral College via a popular vote. The state of Colorado has 10 electoral votes in the Electoral College, following reapportionment due to the 2020 United States census in which the state gained a seat.

A Mountain West state that was formerly Republican leaning, no Republican has won Colorado by double digits at the presidential level since Ronald Reagan in his 1984 landslide re-election victory. Colorado was consistently competitive at the presidential level from the late 1980s going through the 2010s, including Hillary Clinton narrowly winning the state by 4.9% in 2016. In 2020, Democrat Joe Biden carried the state and became the first presidential candidate to win Colorado by a double-digit margin since Reagan. The last Republican to win the Centennial State’s electoral votes was George W. Bush in his 2004 re-election victory, which he won by a margin of 4.67%, since then has shifted substantially to the left. Today, Colorado is a slightly-to-moderately blue state, with Democrats winning the state in every presidential election starting in 2008, and occupying every statewide office since 2023, but recent polls for 2024 have indicated a tighter race for the state.

Incumbent Democratic president Joe Biden is running for re-election to a second term.

Democratic primary
The Colorado Democratic primary was held on Super Tuesday, March 5, 2024.

Republican primary
The Colorado Republican primary was held on Super Tuesday, March 5, 2024.

14th Amendment lawsuit
The Citizens for Responsibility and Ethics in Washington, a left-leaning non-profit, filed a lawsuit on behalf of four Republicans and independent voters, saying that Donald Trump is ineligible to run for president because of a section in the 14th Amendment that states "no person shall ... hold any office, civil or military, under the United States ... who, having previously taken an oath .... as an officer of the United States ... shall have engaged in insurrection or rebellion against the same, or given aid or comfort to the enemies thereof". A trial on this case took place during October and November 2023. The judge found that Trump engaged in insurrection but declined to remove Trump from the primary ballot, saying there is "scant direct evidence regarding whether the Presidency is one of the positions subject to disqualification". On December 19, 2023, the Colorado Supreme Court ruled that Trump is disqualified from the Presidency under Section 3 of the 14th Amendment and ordered that Trump be removed from the 2024 Colorado Republican presidential primary ballot.

Trump appealed this ruling to the Supreme Court of the United States, and arguments were heard in February. The Colorado decision was stayed pending appeal, and Trump was included on the certified ballot, which began to be mailed to overseas voters on January 20. On March 4, 2024, the Supreme Court issued a ruling unanimously reversing the Colorado Supreme Court decision, ruling that states had no authority to remove Trump from their ballots, and this was instead a power held by Congress.

Polling

 * Joe Biden vs. Donald Trump


 * Joe Biden vs. Donald Trump vs. Robert F. Kennedy Jr. vs. Cornel West vs. Jill Stein


 * Joe Biden vs. Ron DeSantis


 * Generic Democrat vs. generic Republican