| State, District |
Reason for Vacancy, Successor |
| Arizona, 8th |
The Honorable Trent Franks resigned from the
115th Congress on December 8, 2017. |
| Michigan, 13th |
The Honorable John Conyers Jr. resigned from the
115th Congress on December 5, 2017. |
| Pennsylvania, 18th |
The Honorable Tim Murphy resigned from the
115th Congress on October 21, 2017.
The Honorable Conor Lamb was elected
March 13, 2018, in special election.
Representative Lamb was added to the rolls of the House upon executing the oath of office on
April 12, 2018. |
| Utah, 3rd |
The Honorable Jason Chaffetz resigned from the 115th Congress on June 30, 2017.
The Honorable John R. Curtis was elected
November 7, 2017, in special election.
Representative Curtis was added to the rolls of the House upon executing the oath of office on
November 13, 2017. |
| Kansas, 4th |
The Honorable Mike Pompeo resigned from the
115th Congress on January 23, 2017.
The Honorable Ron Estes was elected
April 11, 2017, in special election.
Representative Estes was added to the rolls of the House upon executing the oath of office on
April 25, 2017. |
| Montana, At Large |
The Honorable Ryan K. Zinke resigned from the 115th Congress on March 1, 2017.
The Honorable Greg Gianforte was elected
May 25, 2017, in special election.
Representative Gianforte was added to the rolls of the House upon executing the oath of office on
June 21, 2017. |
| South Carolina, 5th |
The Honorable Mick Mulvaney resigned from the 115th Congress on February 16, 2017.
The Honorable Ralph Norman was elected
June 20, 2017, in special election.
Representative Norman was added to the rolls of the House upon executing the oath of office on
June 26, 2017. |
| Georgia, 6th |
The Honorable Tom Price resigned from the
115th Congress on February 10, 2017.
The Honorable Karen C. Handel was elected
June 20, 2017, in special election.
Representative Handel was added to the rolls of the House upon executing the oath of office on
June 26, 2017. |
| California, 34th |
The Honorable Xavier Becerra resigned from the 115th Congress on January 24, 2017.
The Honorable Jimmy Gomez was elected
June 6, 2017, in special election.
Representative Gomez was added to the rolls of the House upon executing the oath of office on
July 11, 2017. |