Incumbents retiring from public office
U.S. Senators
Bob Corker Republican Tennessee
Jeff Flake Republican Arizona
Al Franken Democratic Minnesota
U.S. House members
Blake Farenthold Republican Texas, District 27
Bob Goodlatte Republican Virginia, District 6
Carol Shea-Porter Democratic New Hampshire, District 1
Charles W. Dent Republican Pennsylvania, District 15
Dave Reichert Republican Washington, District 8
David Trott Republican Michigan, District 11
Frank LoBiondo Republican New Jersey, District 2
Gene Green Democratic Texas, District 29
Ileana Ros-Lehtinen Republican Florida, District 27
Jeb Hensarling Republican Texas, District 5
Joe Barton Republican Texas, District 6
John Delaney Democratic Maryland, District 6
John J. Duncan, Jr. Republican Tennessee, District 2
Lamar Smith Republican Texas, District 21
Luis V. Gutierrez Democratic Illinois, District 4
Lynn Jenkins Republican Kansas, District 2
Niki Tsongas Democratic Massachusetts, District 3
Ruben J. Kihuen Democratic Nevada, District 4
Sam Johnson Republican Texas, District 3
Sandy Levin Democratic Michigan, District 9
Ted Poe Republican Texas, District 2
Jason Chaffetz Republican Utah, District 3
John Conyers, Jr. Democratic Michigan, District 13
Patrick J. Tiberi Republican Ohio, District 12
Tim Murphy Republican Pennsylvania, District 18
Tom Price Republican Sec HHS
Trent Franks Republican Arizona, District 8
Xavier Becerra Democratic Attorney General of California
Source
ballotpedia.org/List_of_U.S._Congress_incumbents_who_are_not_running_for_re-election_in_2018