As of Jan. 31, 2018, there are 38 Republican House members who are not returning to the House for another term.
Republicans retiring in 2018:
Retiring Senate Republicans
Sen. Bob Corker, R-Tennessee
Sen. Jeff Flake, R-Arizona
Sen. Orrin Hatch, R-Utah
Retiring House Republicans
Rep. Joe Barton, R-Texas
Rep. Charlie Dent, R-Pennsylvania
Rep. John Duncan, R-Tennessee
Rep. Blake Farenthold, R-Texas
Rep. Rodney P. Frelinghuysen, R-New Jersey
Rep. Bob Goodlatte, R-Virginia
Rep. Trey Gowdy, R-South Carolina
Rep. Gregg Harper, R-Mississippi
Rep. Jeb Hensarling, R-Texas
Rep. Darrell Issa, R-California
Rep. Lynn Jenkins, R-Kansas
Rep. Sam Johnson, R-Texas
Rep. Frank LoBiondo, R-New Jersey
Rep. Ted Poe, R-Texas
Rep. Dave Reichert, R-Washington
Rep. Ileana Ros-Lehtinen, R-Florida
Rep. Ed Royce, R-California
Rep. Bill Shuster, R-Pennsylvania
Rep. Lamar Smith, R-Texas
Rep. Dave Trott, R-Michigan
Rep. Tom Rooney, R-Florida
House Republicans who have resigned or will resign
Rep. Jason Chaffetz, R-Utah
Rep. Trent Franks, R-Arizona
Rep. Patrick Meehan, R-Pennsylvania
Rep. Tim Murphy, R-Pennsylvania
Rep. Pat Tiberi, R-Ohio
House Republicans running for another office
Senate:
Rep. Lou Barletta, R-Pennsylvania
Rep. Marsha Blackburn, R-Tennessee
Rep. Evan Jenkins, R-West Virginia
Rep. Luke Messer, R-Indiana
Rep. Todd Rokita, R-Indiana
Rep. Martha McSally, R-Arizona
Governor:
Rep. Diane Black, R-Tennessee
Rep. Raul Labrador, R-Idaho
Rep. Kristi Noem, R-South Dakota
Rep. James Renacci, R-Ohio
Rep. Steve Pearce, R-New Mexico
Rep. Ron DeSantis, R-Florida
https:// www.cbsnews.com/news/republicans-leaving-congress-retiring-2018/