2018 United States House of Representatives elections

The Democratic Party won control of the House of Representatives in the 2018 midterm elections. The Democrats gained a net total of 41 seats from the total number of seats they had won in the 2016 elections. This was their largest gain of House seats in an election since the 1974 elections, when the Democrats gained 49 House seats. Democrats won the popular vote by more than 9.7 million votes, or 8.6%, the largest margin of victory on record for a minority party. Prior to the 2018 elections, the Republican Party had held the House majority since January 2011. According to the Associated Press' statistical analysis, gerrymandering may have cost the Democrats 16 seats in the 2018 House elections. Voter turnout in these elections was 50.3%, the highest turnout in a U.S. midterm election since 1914. The House Republicans' passage of the widely unpopular American Health Care Act of 2017 to repeal the Affordable Care Act, as well as opposition to Trump's policies, his low approval ratings, and questions about his personal stamina for office, are credited for the Democratic takeover of the House. (Note that the results summary does not include blank and over/under votes which were included in the official results or votes cast in the voided election in North Carolina's 9th congressional district.) Partisan shifts by state Maps File:2018 US House Election Results cartogram.svg|Cartogram of results File:2018 US House of Representatives Election by States.svg|Popular vote by states File:116th US Congress House.svg|House seats by party holding plurality in state File:2018 Changes to U.S. House Delegations.svg|Net changes to U.S. House seats after the 2018 elections File:US House 2018 voteshare.svg|Results shaded according to winning candidate's share of the vote Veteran candidate recruitment The Democratic Congressional Campaign Committee actively recruited military veterans and candidates with national security backgrounds for competitive districts in 2018. Political analysts noted that candidates with military experience could appeal to moderate and independent voters in swing districts. Of the 24 Republicans unseated by Democrats, eight were defeated by veterans or former national security officials, including Jason Crow (Colorado), Elissa Slotkin (Michigan), Mikie Sherrill (New Jersey), Chrissy Houlahan (Pennsylvania), and Elaine Luria (Virginia). == Retirements ==

In the November general elections, 55 incumbents did not seek re-election. This election cycle saw the third most retirements in an election cycle in history behind 1992 and 2026. Democrats Eighteen Democrats did not seek re-election. • : Kyrsten Sinema retired to run for U.S. senator. • : Colleen Hanabusa retired to run for governor of Hawaii. • : Rick Nolan retired to run for lieutenant governor of Minnesota. • : Jacky Rosen retired to run for U.S. senator. • : Carol Shea-Porter retired. • : Ed Royce retired. • : Tom Rooney retired. • : Ileana Ros-Lehtinen retired. • : Rodney Frelinghuysen retired. • : Jim Renacci retired to run for U.S. senator. • : Lou Barletta, redistricted from the 11th district, retired to run for U.S. senator. • : Kristi Noem retired to run for governor of South Dakota. • : Ted Poe retired. • : Bob Goodlatte retired. • : Dave Reichert retired. • : Evan Jenkins announced his retirement to run for U.S. senator, then resigned on September 30, 2018, to become a justice of the Supreme Court of Appeals of West Virginia. • : Paul Ryan retired. == Incumbents defeated ==

In primary elections Democrats Three Democrats (including one non-voting delegate) lost renomination. • : Delegate Madeleine Bordallo lost renomination to Michael San Nicolas, who went on to win the general election. • : Mike Capuano lost renomination to Ayanna Pressley, who went on to win the general election. • : Joe Crowley lost renomination to Alexandria Ocasio-Cortez, who went on to win the general election. Republicans Thirty Republicans lost re-election to Democrats. • : Steve Russell (first elected in 2014) lost to Kendra Horn. • : Keith Rothfus (first elected in 2012) lost a redistricting race to Conor Lamb. • : John Culberson (first elected in 2000) lost to Lizzie Fletcher. • : Pete Sessions (first elected in 1996) lost to Colin Allred. • : Mia Love (first elected in 2014) lost to Ben McAdams. • : Scott Taylor (first elected in 2016) lost to Elaine Luria. • : Dave Brat (first elected in 2014) lost to Abigail Spanberger. • : Barbara Comstock (first elected in 2014) lost to Jennifer Wexton. == Open seats that changed parties ==

Democratic seats won by Republicans Three open Democratic seats were won by Republicans. • : won by Jim Hagedorn. • : won by Pete Stauber. • : Conor Lamb instead ran in the 17th district; won by Guy Reschenthaler. • : won by Mikie Sherrill. • : won by Xochitl Torres Small. • : won by Mary Gay Scanlon. • : won by Chrissy Houlahan. • : won by Susan Wild. • : won by Joe Cunningham. • : won by Kim Schrier. == Vacancies during the 115th Congress that did not result in special elections ==

Three Republicans, all of whom had already announced their retirement, resigned early. • Florida 6: Ron DeSantis resigned on September 10, 2018, retroactive to September 1, to focus on his campaign for Governor of Florida. This seat was then left vacant until the 116th Congress was sworn in on January 3, 2019. • Oklahoma 1: Jim Bridenstine resigned on April 23, 2018, to become head of NASA. This seat was then left vacant until Kevin Hern was sworn in early on November 13, 2018, having won the regularly scheduled November 6, 2018 election for the next full term. • : Evan Jenkins announced his retirement May 8, 2017, to run for U.S. Senator. He lost the nomination and then resigned September 30, 2018, when appointed to the Supreme Court of Appeals of West Virginia. This seat was then left vacant until the 116th Congress was sworn in on January 3, 2019. == Closest races ==

Eighty-nine races were decided by 10% or lower. == Election ratings ==

Elections ordered by election date. • Conor Lamb (Democratic) 49.9% • Rick Saccone (Republican) 49.5% }} • Debbie Lesko (Republican) 52.4% • Hiral Tipirneni (Democratic) 47.6% }} • Michael Cloud (Republican) 54.7% • Eric Holguin (Democratic) 32.0% • Roy Barrera (Democratic) 4.8% • Bech Bruun (Republican) 4.3% • Mike Westergren (Democratic) 2.4% }} • Troy Balderson (Republican) 50.1% • Danny O'Connor (Democratic) 49.3% }} • Brenda Jones (Democratic) 86.9% • Marc Sosnowski (Taxpayers) 8.9% • D. Etta Wilcoxon (Green) 4.3% }} • Joseph Morelle (Democratic) 58.3% • Jim Maxwell (Republican) 41.7% }} • Mary Gay Scanlon (Democratic) 52.3% • Pearl Kim (Republican) 46.0% • Sandra Teresa Salas (Libertarian) 1.0% }} • Susan Wild (Democratic) 48.5% • Marty Nothstein (Republican) 48.3% • Tim Silfies (Libertarian) 3.2% }} == Exit poll ==

Source: Edison Research exit poll for the National Election Pool == Election dates ==

For the regularly scheduled November elections. == Alabama ==

The state congressional delegation remained the same, at 6–1 for Republicans. == Alaska ==

Republicans maintained control of the sole seat in the state. == Arizona ==

The state congressional delegation flipped from a 5–4 Republican majority to a 5–4 Democratic majority. == Arkansas ==

The state congressional delegation remained the same with a 4–0 Republican majority. == California ==

The Democratic majority increased from 39–14 to 46–7. == Colorado ==

The state congressional delegation flipped from a 4–3 Republican majority to a 4–3 Democratic majority. == Connecticut ==

The state congressional delegation remained unchanged at 5–0 Democrats. == Delaware ==

Democrats retained control of the sole seat in the state. == Florida ==

The Republican majority was reduced from 16–11 to 14–13. == Georgia ==

The Republican majority was reduced from 10–4 to 9–5. == Hawaii ==

Hawaii maintained its 2-0 Democratic hold. == Idaho ==