Compared with Hillary Clinton’s 2-point popular vote advantage over Donald Trump in the 2016 presidential election, the Democratic Party expanded its margin over the Republican Party to 9 points in votes cast for the U.S. House of Representatives in 2018, a gain of 7 percentage points. This increased support was sufficient for the Democratic Party to gain the majority in the House with a net pickup of 41 seats. Voter turnout as a share of the eligible population was 49%, the highest for a midterm election in 100 years. A new analysis of verified voters from Pew Research Center’s American Trends Panel examines what 2016 voters and nonvoters did in the 2018 midterm elections and offers a detailed portrait of the demographic composition and vote choices of the 2018 electorate. CONT.
Scott Keeter & Ruth Igielnik, Pew Research Center