US Midterm Election History: Results From 2006 to 2022

Last updated: October 31, 2026 (ET). Updated as verified information becomes available.

Midterm elections, held halfway through a president’s term, have often shifted power in Congress. The table and chart below show the party balance in the House at the start of each Congress elected in the last five midterm years, using official House records. Historical Senate figures will be added once confirmed.

House seats by party after each midterm, 2006 to 2022 Seats at the start of each Congress. 2006: Democrats 233, Republicans 202. 2010: Democrats 193, Republicans 242. 2014: Democrats 188, Republicans 247. 2018: Democrats 235, Republicans 199. 2022: Democrats 213, Republicans 222. Source: Office of the Historian, U.S. House. Dashed line: 218 seats (majority) 2332022006 1932422010 1882472014 2351992018 2132222022 DemocratsRepublicans
House seats held by each party at the start of the Congress elected in each midterm year. 2018 figure (199 Republicans) reflects one vacancy. Source: Office of the Historian, U.S. House of Representatives, retrieved Oct. 31, 2026.
House party divisions at the start of each Congress elected in a midterm year
Midterm Congress House D House R
2006 110th (2007 to 2009) 233 202
2010 112th (2011 to 2013) 193 242
2014 114th (2015 to 2017) 188 247
2018 116th (2019 to 2021) 235 199
2022 118th (2023 to 2025) 213 222

Source: Office of the Historian, U.S. House. Historical Senate figures will be added once confirmed.

Midterm by midterm

  • 2006: Democrats won the House, opening the 110th Congress with 233 seats. Republicans had held 232 seats at the start of the 109th Congress.
  • 2010: Republicans won the House, opening the 112th Congress with 242 seats.
  • 2014: Republicans kept the House and opened the 114th Congress with 247 seats.
  • 2018: Democrats won the House, with 235 seats at the start of the 116th Congress.
  • 2022: Republicans won the House, with 222 seats at the start of the 118th Congress.

House control changed hands in four of these five midterms: 2006, 2010, 2018 and 2022.

Where things stand before 2026

Current party balance in Congress before the Nov. 3, 2026 election
Chamber Republicans Democrats Independents Vacancies Majority threshold
House (435) 218 214 1 2 218
Senate (100) 53 45 2 (caucus with Democrats) 0 51, or 50 plus the vice president
House: Office of the Clerk, retrieved Oct. 31, 2026. Senate: Congress.gov member data (Library of Congress), retrieved Oct. 31, 2026, and Ballotpedia.

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