2020 United States presidential election in Maine

The 2020 United States presidential election in Maine was held on Tuesday, November 3, 2020, as part of the 2020 United States presidential election in which all 50 states plus the District of Columbia participated. Maine 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. Maine has four electoral votes in the Electoral College. Unlike all other states except Nebraska, Maine awards two electoral votes based on the statewide vote, and one vote for each congressional district. In the 2016 election, Maine split its vote for the first time since 1828, awarding one electoral vote to Trump as he got the most votes in Maine's 2nd congressional district.
Maine became the first state to use ranked-choice voting for a presidential general election, with voters able to rank their preferred candidates on the ballot.
Biden carried Maine by a 9% margin over Trump, improving over Hillary Clinton's 3% win margin in 2016. Biden handily carried Maine's 1st congressional district by 23%, while Trump carried its 2nd congressional district by 7.4%, winning a single electoral vote from the state. This marked the first election in history in which Maine and Nebraska both split their electoral votes. Ranked-choice tabulation was ultimately not used as Biden earned a majority statewide and in the 1st district, while Trump earned a majority in the 2nd district. Biden narrowly flipped Kennebec County (home to the state capital, Augusta) four years after Clinton lost it. All other counties favored the same party they did in 2016.
Maine is located in New England, an area that has become a hotbed for the Democratic Party. It was once a classic Rockefeller Republican state, but social issues have moved it to the Democratic column. Per exit polls by the Associated Press, Biden's strength in Maine came from liberals, with Biden winning whites 54%–44%, including 56% of white women. Biden was even competitive with Trump among Maine's gun owners, a traditionally Republican interest group, capturing 42% of their vote to Trump's 57%.
Maine was one of sixteen states where President Trump received less percentage of the vote than he did in the 2016 election. This is the first time since 2004 that Maine's 2nd congressional district backed the candidate who lost the electoral college and overall presidential race.
Primary elections.
The primary elections were held on Super Tuesday, March 3, 2020.
Republican primary.
Incumbent President Donald Trump ran unopposed in the Republican primary, and thus he received all of Maine's 22 delegates to the 2020 Republican National Convention.
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Democratic primary.
In an electoral upset, moderate candidate Joe Biden won the state, which primary opponent Bernie Sanders previously won in 2016.
General election.
Ballot access.
Libertarian.
The Libertarian Party was recognized by Maine as an official party in June 2016 but lost that status in December 2018. To qualify for ballot access, Jorgensen was required to submit 4,000 petition signatures to the state by August 3. Jorgensen sued the state for a reduction of the signature requirement, citing an increase in the difficulty of petitioning caused by the COVID-19 pandemic. Jorgensen was successful in appearing on the ballot.
Polling.
Graphical summary (statewide).
Aggregate polls
Results.
By congressional district.
Joe Biden won the 1st district as the incumbent Democratic representative was re-elected. Donald Trump won the 2nd district despite the incumbent Democratic representative being re-elected. 