 | ||||||||||||||||||||||||||||||||||
6 of the 435 seats in theUnited States House of Representatives 218 seats needed for a majority | ||||||||||||||||||||||||||||||||||
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 Results: Democratic hold Republican hold | ||||||||||||||||||||||||||||||||||
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There were sixspecial elections to the United States House of Representatives in 2017 during the115th United States Congress.
All of the elections were won by the party previously holding the seat. Therefore, there were no net changes in party.
Although Democrats did not gain any seats, their margins were narrower than the districts'Cook Partisan Voting Index.
Elections are sorted by date and district.
| District | Incumbent | This race | ||||
|---|---|---|---|---|---|---|
| Location | Member | Party | First elected | Results | Candidates | |
| Kansas 4 | Mike Pompeo | Republican | 2010 | Incumbent resigned January 23, 2017 to becomeDirector of the Central Intelligence Agency.[1] New memberelected April 11, 2017.[2] Republican hold. |
| |
| Montana at-large | Ryan Zinke | Republican | 2014 | Incumbent resigned March 1, 2017 to becomeU.S. Secretary of the Interior.[3] New memberelected May 25, 2017.[4] Republican hold. |
| |
| California 34 | Xavier Becerra | Democratic | 1992 | Incumbent resigned January 24, 2017 to becomeAttorney General of California.[5] New memberelected June 6, 2017.[6] Democratic hold. |
| |
| Georgia 6 | Tom Price | Republican | 2004 | Incumbent resigned February 10, 2017 to becomeU.S. Secretary of Health and Human Services.[7] New memberelected June 20, 2017.[8] Republican hold. |
| |
| South Carolina 5 | Mick Mulvaney | Republican | 2010 | Incumbent resigned February 16, 2017 to become Director of theOffice of Management and Budget.[3] New memberelected June 20, 2017.[9] Republican hold. |
| |
| Utah 3 | Jason Chaffetz | Republican | 2008 | Incumbent resigned June 30, 2017 for health reasons.[10] New memberelected November 7, 2017.[11] Republican hold. |
| |
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Republican | Ron Estes | 64,044 | 52.2% | −8.5% | |
| Democratic | James Thompson | 56,435 | 46.0% | +16.4% | |
| Libertarian | Chris Rockhold | 2,115 | 1.7% | −1.1% | |
| Total votes | 122,594 | 100.0% | |||
| Republicanhold | |||||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Republican | Greg Gianforte | 190,520 | 49.95% | −6.24% | |
| Democratic | Rob Quist | 169,214 | 44.37% | +3.82% | |
| Libertarian | Mark Wicks | 21,682 | 5.68% | +2.42% | |
| Total votes | 381,416 | 100.0% | N/A | ||
| Republicanhold | |||||
| Party | Candidate | Votes | % | ||
|---|---|---|---|---|---|
| Democratic | Jimmy Gomez | 25,569 | 59.22% | ||
| Democratic | Robert Lee Ahn | 17,610 | 40.78% | ||
| Total votes | 43,179 | 100.00% | |||
| Democratichold | |||||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Republican | Karen Handel | 134,799 | 51.78% | −9.90% | |
| Democratic | Jon Ossoff | 125,517 | 48.22% | +9.90% | |
| Total votes | 260,316 | 100.0% | |||
| Majority | 9,282 | 3.57% | −19.8% | ||
| Turnout | 260,455 | 58.16% | |||
| Republicanhold | |||||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Republican | Ralph Norman | 45,076 | 51.04% | −8.03% | |
| Democratic | Archie Parnell | 42,341 | 47.94% | +9.17% | |
| American | Josh Thornton | 319 | 0.36% | −1.74% | |
| Libertarian | Victor Kocher | 273 | 0.31% | N/A | |
| Green | David Kulma | 242 | 0.27% | N/A | |
| Write-In | Write-in | 65 | 0.07% | +0.31% | |
| Total votes | 88,316 | 100.0% | |||
| Republicanhold | |||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | John Curtis | 85,739 | 58.03% | |
| Democratic | Kathie Allen | 37,778 | 25.57% | |
| United Utah | Jim Bennett | 13,745 | 9.30% | |
| Independent | Sean Whalen | 4,550 | 3.08% | |
| Libertarian | Joe Buchman | 3,643 | 2.47% | |
| Independent American | Jason Christensen | 2,286 | 1.55% | |
| Write-in | Brendan Phillips | — | — | |
| Write-in | Russell Paul Roesler | — | — | |
| Total votes | 147,741 | 100.00% | ||
| Republicanhold | ||||
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