Is split-ticket voting common in the US?
Split-ticket voting—backing candidates from different parties in the same election—is increasingly rare.
In 2012, only 6% of voters in House districts voted for presidential and congressional candidates belonging to different parties. In 2018, split-ticket voting hit a low in Senate and gubernatorial races. In 2020 pre-election polling, only 4% of registered voters in states with Senate contests indicated an intention to back opposing parties in the presidential and Senate races.
But split-ticket voting can still hold sway. In 2020, 52.9% of voters in Maine voted for Democrat Joe Biden for president, while 51.1% voted to reelect Republican Sen. Susan Collins. Split-ticket voting can be influenced by incumbency or a candidate's degree of popularity (or unpopularity).