[1] New Mexico voters chose electors to represent them in the Electoral College via a popular vote, pitting the Republican Party's nominee, incumbent President Donald Trump, and running mate Vice President Mike Pence against Democratic Party nominee, former Vice President Joe Biden, and his running mate California Senator Kamala Harris.

Biden scored victories in all of the state's three largest counties: Bernalillo, Doña Ana, and Santa Fe counties, home to Albuquerque, Las Cruces, and Santa Fe, respectively; all of them voted for Biden in margins greater than ten points.

[4][5] Per exit polls by the Associated Press, much of Biden's strength in New Mexico came from Latino voters, from whom he garnered 61% of the vote.

However, New Mexico has become a reliably blue state since then as Democrats have relied on Hispanic, Native American, and urban voters to deliver victories.

On December 14, 2020, the Trump campaign filed a lawsuit against the New Mexico Secretary of State over the use of ballot drop-boxes for the 2020 presidential election.

However, on January 11, 2021, five days after Congress certified the results for Joe Biden, the campaign dropped the lawsuit.