Since 2000, the Republican Party’s share of seats won exceeded its national vote share in 11 of 12 U.S. House of Representatives elections. The only election where the Republican Party won fewer U.S. House districts relative to its national vote share was in 2008.
During this period, the Democratic Party’s share of seats won exceeded its national vote share in seven of 12 U.S. House elections—in 2000, 2002, 2006, 2008, 2018, 2020, and 2022.
