Our project to calculate the 2020 presidential results for all 435 congressional districts nationwide goes to Maine, where Democratic Rep. Jared Golden won a second term even as Donald Trump once again carried his 2nd Congressional District. We’ll also be taking a look at the seven states that are home to only one U.S. House seat. You can find our complete data set here, which we're updating continuously as the precinct-level election returns we need for our calculations become available.
Joe Biden carried Maine, which has backed every Democratic presidential nominee since 1992, by a 53-44 margin, which was a notable improvement on Hillary Clinton’s 48-45 performance there in 2016. Maine, however, gives an electoral vote to the winner of each of its congressional districts (the only other state to do this is Nebraska), and for the second cycle in a row, the 2nd District went to Trump. This seat in the northern part of the state supported Trump 52-45, a somewhat smaller margin compared to his 51-41 performance there four years ago but still a clear win. You can find a larger version of our map here.
Despite Trump’s victory at the top of the ticket, though, Golden defeated Republican Dale Crafts 53-47. At the start of the cycle, Republicans had planned to target Golden, who had flipped this seat in a tight 2018 race, but major outside groups on both sides dramatically cut their ad buys in the final weeks of the race in what Politico characterized at the time as “a sign of no confidence” in Crafts.
Biden took the 1st District, meanwhile, by a 60-37 margin, which was also a big shift from Clinton’s 54-39 win. This seat, which contains Portland, has been solidly blue turf for decades, and Democratic Rep. Chellie Pingree won her seventh term 62-38.
While Democrats control the governorship and both houses of the legislature, redistricting isn't likely to alter Maine's congressional map all that much. The state requires two-thirds of each chamber to pass a new map, and there are more than enough Republicans to block any districts they view as unfavorable. If the legislature deadlocks, the state Supreme Court would take charge of redistricting.
We’ll now take a look at the nation’s seven at-large congressional districts. Alaska supported Donald Trump 53-43, a smaller margin than his 53-38 showing in 2016. This was the closest a Democrat's come to winning the Last Frontier’s three electoral votes since 1992, when George H.W. Bush edged out Bill Clinton 39-30 as Ross Perot was taking 28%. Biden's 43% was also the highest since 1964, when Lyndon Johnson became the only Democratic candidate to ever carry Alaska.
Rep. Don Young, a Republican whose nearly 48 years in office makes him the House’s longest serving current member, faced a rematch this year against Alyse Galvin, an independent who won the Democratic nomination. While outside groups for both parties spent heavily, Young won 54-45, an improvement from his 53-47 showing in 2018.
Democrats also made a serious effort to flip Montana’s open House seat but came up short. Trump’s 57-41 margin of victory was smaller than his 56-36 showing four years ago, but the state still wasn’t close. Republican Matt Rosendale beat Democrat Kathleen Williams 56-44, a win that came two years after Rosendale lost his challenge to Democratic Sen. Jon Tester by a 50-47 margin. It was also a much bigger defeat for Williams than in her previous attempt for this seat in 2018, when she fell to now-Gov.-elect Greg Gianforte 51-45.
Biden, meanwhile, improved on Clinton’s performance in his home state of Delaware and in Vermont, where Democratic Reps. Lisa Blunt Rochester and Peter Welch, respectively, also had no trouble winning re-election. North Dakota, South Dakota, and Wyoming remained safely red turf up and down the ballot. Wyoming, which backed Trump 70-27, also gave him his largest margin of victory in any state for the second cycle in a row.
Congressional redistricting hasn’t been a factor in any of these seven states in some time, but there’s a very good chance that Montana could regain the second House seat that it lost after the 1990 census. However, while Gianforte’s win in this year’s gubernatorial race gives Team Red the trifecta it lost in the 2004 elections, state law grants a bipartisan commission responsibility over redistricting matters. Rhode Island, meanwhile, could soon join the list of at-large states, as population growth patterns suggest its two seats will shrink to one following reapportionment.