District | Image | Representative | Switched party | Prior background | Birth year | Ref |
Arizona 2 | | Ann Kirkpatrick (D) | Yes Open seat; replaced Martha McSally (R) | U.S. House of Representatives Arizona House of Representatives | 1950 | |
Arizona 9 | | Greg Stanton (D) | No Open seat; replaced Kyrsten Sinema (D) | Mayor of Phoenix Phoenix City Council | 1970 | |
California 10 | | Josh Harder (D) | Yes Defeated Jeff Denham (R) | Venture capital investor | 1986 | |
California 21 | | TJ Cox (D) | Yes Defeated David Valadao (R) | Chemical engineer | 1963 | |
California 25 | | Katie Hill (D) | Yes Defeated Steve Knight (R) | Social services administrator | 1987 | |
California 39 | | Gil Cisneros (D) | Yes Open seat; replaced Ed Royce (R) | Philanthropist U.S. Navy Lieutenant Commander | 1971 | |
California 45 | | Katie Porter (D) | Yes Open seat; replaced Mimi Walters (R) | Lawyer Professor | 1974 | |
California 48 | | Harley Rouda (D) | Yes Defeated Dana Rohrabacher (R) | Lawyer Businessman | 1961 | |
California 49 | | Mike Levin (D) | Yes Open seat; replaced Darrell Issa (R) | Attorney | 1978 | |
Colorado 2 | | Joe Neguse (D) | No Open seat; replaced Jared Polis (D) | Colorado Director of Regulatory Agencies Regents of the University of Colorado | 1984 | |
Colorado 6 | | Jason Crow (D) | Yes Defeated Mike Coffman (R) | Lawyer U.S. Army Ranger | 1979 | |
Connecticut 5 | | Jahana Hayes (D) | No Open seat; replaced Elizabeth Esty (D) | Educator | 1973 | |
Florida 6 | | Michael Waltz (R) | No Open seat; replaced Ron DeSantis (R) | U.S. Army Special Forces | 1974 | |
Florida 15 | | Ross Spano (R) | No Open seat; replaced Dennis Ross (R) | Florida House of Representatives | 1966 | |
Florida 17 | | Greg Steube (R) | No Open seat; replaced Tom Rooney (R) | Florida Senate Florida House of Representatives U.S. Army Judge Advocate General's Corps | 1978 | |
Florida 26 | | Debbie Mucarsel-Powell (D) | Yes Defeated Carlos Curbelo (R) | Academic administrator | 1971 | |
Florida 27 | | Donna Shalala (D) | Yes Open seat; replaced Ileana Ros-Lehtinen (R) | U.S. Secretary of Health and Human Services Asst. Sec. of Housing and Urban Development President of the Clinton Foundation President of the University of Miami | 1941 | |
Georgia 6 | | Lucy McBath (D) | Yes Defeated Karen Handel (R) | Gun control advocate | 1960 | |
Hawaii 1 | | Ed Case (D) | No Open seat; replaced Colleen Hanabusa (D) | U.S. House of Representatives Hawaii House of Representatives | 1952 | |
Idaho 1 | | Russ Fulcher (R) | No Open seat; replaced Raúl Labrador (R) | Idaho Senate | 1962 | |
Illinois 4 | | Chuy García (D) | No Open seat; replaced Luis Gutiérrez (D) | Cook County Board of Commissioners Illinois Senate Chicago City Council | 1956 | |
Illinois 6 | | Sean Casten (D) | Yes Defeated Peter Roskam (R) | Co-founder of Recycled Energy Development Scientist | 1971 | |
Illinois 14 | | Lauren Underwood (D) | Yes Defeated Randy Hultgren (R) | Senior advisor at the U.S. HHS Department Registered nurse | 1986 | |
Indiana 4 | | Jim Baird (R) | No Open seat; replaced Todd Rokita (R) | Indiana House of Representatives U.S. Army First Lieutenant | 1945 | |
Indiana 6 | | Greg Pence (R) | No Open seat; replaced Luke Messer (R) | Businessman U.S. Marine Corps First Lieutenant | 1956 | |
Iowa 1 | | Abby Finkenauer (D) | Yes Defeated Rod Blum (R) | Iowa House of Representatives | 1988 | |
Iowa 3 | | Cindy Axne (D) | Yes Defeated David Young (R) | Businesswoman | 1965 | |
Kansas 2 | | Steve Watkins (R) | No Open seat; replaced Lynn Jenkins (R) | U.S. Army Captain | 1976 | |
Kansas 3 | | Sharice Davids (D) | Yes Defeated Kevin Yoder (R) | Attorney Mixed martial artist | 1980 | |
Maine 2 | | Jared Golden (D) | Yes Defeated Bruce Poliquin (R) | Maine House of Representatives U.S. Marine Corps | 1982 | |
Maryland 6 | | David Trone (D) | No Open seat; replaced John Delaney (D) | Co-founder of Total Wine & More | 1955 | |
Massachusetts 3 | | Lori Trahan (D) | No Open seat; replaced Niki Tsongas (D) | Businesswoman Chief of staff to Representative Marty Meehan | 1973 | |
Massachusetts 7 | | Ayanna Pressley (D) | No Replaced Mike Capuano (D), who lost renomination | Boston City Council Senior aide to Senator John Kerry | 1974 | |
Michigan 8 | | Elissa Slotkin (D) | Yes Defeated Mike Bishop (R) | Assistant Secretary of Defense (ISA) Central Intelligence Agency | 1976 | |
Michigan 9 | | Andy Levin (D) | No Open seat; replaced Sander Levin (D) | Deputy Director of the Michigan DELEG Trade union organizer | 1960 | |
Michigan 11 | | Haley Stevens (D) | Yes Open seat; replaced Dave Trott (R) | Chief of staff to the Pres. Auto Industry Task Force | 1983 | |
Michigan 13 | | Rashida Tlaib (D) | No Open seat; replaced John Conyers (D) | Michigan House of Representatives | 1976 | |
Minnesota 1 | | Jim Hagedorn (R) | Yes Open seat; replaced Tim Walz (DFL) | Bureau of Engraving and Printing official Financial Management Service official Legislative aide to Representative Arlan Stangeland | 1962 | |
Minnesota 2 | | Angie Craig (DFL) | Yes Defeated Jason Lewis (R) | Journalist | 1972 | |
Minnesota 3 | | Dean Phillips (DFL) | Yes Defeated Erik Paulsen (R) | President of Phillips Distilling Company Co-owner of Talenti | 1969 | |
Minnesota 5 | | Ilhan Omar (DFL) | No Open seat; replaced Keith Ellison (DFL) | Minnesota House of Representatives Policy aide to City Councilor Andrew Johnson | 1982 | |
Minnesota 8 | | Pete Stauber (R) | Yes Open seat; replaced Rick Nolan (DFL) | St. Louis County Commission Hermantown City Council Duluth Police Department Professional ice hockey player | 1966 | |
Mississippi 3 | | Michael Guest (R) | No Open seat; replaced Gregg Harper (R) | Madison and Rankin Counties District Attorney | 1970 | |
Nevada 3 | | Susie Lee (D) | No Open seat; replaced Jacky Rosen (D) | President of Nevada Communities In Schools | 1966 | |
Nevada 4 | | Steven Horsford (D) | No Open seat; replaced Ruben Kihuen (D) | U.S. House of Representatives Majority Leader of the Nevada Senate | 1973 | |
New Hampshire 1 | | Chris Pappas (D) | No Open seat; replaced Carol Shea-Porter (D) | Executive Council of New Hampshire New Hampshire House of Representatives | 1980 | |
New Jersey 2 | | Jeff Van Drew (D) | Yes Open seat; replaced Frank LoBiondo (R) | New Jersey Senate New Jersey General Assembly Cape May County Board of Chosen Freeholders | 1953 | |
New Jersey 3 | | Andy Kim (D) | Yes Defeated Tom MacArthur (R) | U.S. National Security Council | 1982 | |
New Jersey 7 | | Tom Malinowski (D) | Yes Defeated Leonard Lance (R) | Assistant Secretary of State (D/HR/L) Human Rights Watch U.S. National Security Council | 1965 | |
New Jersey 11 | | Mikie Sherrill (D) | Yes Open seat; replaced Rodney Frelinghuysen (R) | Assistant U.S. Attorney U.S. Navy Lieutenant | 1972 | |
New Mexico 1 | | Deb Haaland (D) | No Open seat; replaced Michelle Lujan Grisham (D) | Chair of the Democratic Party of New Mexico | 1960 | |
New Mexico 2 | | Xochitl Torres Small (D) | Yes Open seat; replaced Steve Pearce (R) | Law clerk | 1984 | |
New York 11 | | Max Rose (D) | Yes Defeated Dan Donovan (R) | Army National Guard Captain | 1986 | |
New York 14 | | Alexandria Ocasio-Cortez (D) | No Replaced Joe Crowley (D), who lost renomination | Activist | 1989 | |
New York 19 | | Antonio Delgado (D) | Yes Defeated John Faso (R) | Attorney | 1977 | |
New York 22 | | Anthony Brindisi (D) | Yes Defeated Claudia Tenney (R) | New York State Assembly | 1978 | |
North Dakota at-large | | Kelly Armstrong (R) | No Open seat; replaced Kevin Cramer (R) | Chair of the North Dakota Republican Party North Dakota Senate | 1976 | |
Ohio 16 | | Anthony Gonzalez (R) | No Open seat; replaced Jim Renacci (R) | Professional football player | 1984 | |
Oklahoma 5 | | Kendra Horn (D) | Yes Defeated Steve Russell (R) | Lawyer | 1976 | |
Pennsylvania 4 | | Madeleine Dean (D) | New seat | Pennsylvania House of Representatives | 1959 | |
Pennsylvania 6 | | Chrissy Houlahan (D) | Yes Open seat; replaced Ryan Costello (R) | COO of AND1 U.S. Air Force Reserve Captain | 1967 | |
Pennsylvania 9 | | Dan Meuser (R) | No Open seat; replaced Lou Barletta (R) | Pennsylvania Secretary of Revenue | 1964 | |
Pennsylvania 13 | | John Joyce (R) | No Open seat; replaced Bill Shuster (R) | Dermatologist | 1957 | |
Pennsylvania 14 | | Guy Reschenthaler (R) | New seat | Pennsylvania State Senate U.S. Navy Judge Advocate General's Corps | 1983 | |
South Carolina 1 | | Joe Cunningham (D) | Yes Replaced Mark Sanford (R), who lost renomination | Marine engineer Construction attorney | 1982 | |
South Carolina 4 | | William Timmons (R) | No Open seat; replaced Trey Gowdy (R) | South Carolina Senate Air National Guard Captain | 1984 | |
South Dakota at-large | | Dusty Johnson (R) | No Open seat; replaced Kristi Noem (R) | Chief of staff to Governor Dennis Daugaard South Dakota Public Utilities Commission | 1976 | |
Tennessee 2 | | Tim Burchett (R) | No Open seat; replaced Jimmy Duncan (R) | Mayor of Knox County Tennessee Senate Tennessee House of Representatives | 1964 | |
Tennessee 6 | | John Rose (R) | No Open seat; replaced Diane Black (R) | Tennessee Commissioner of Agriculture | 1965 | |
Tennessee 7 | | Mark E. Green (R) | No Open seat; replaced Marsha Blackburn (R) | Tennessee Senate U.S. Army Major | 1964 | |
Texas 2 | | Dan Crenshaw (R) | No Open seat; replaced Ted Poe (R) | U.S. Navy SEAL | 1984 | |
Texas 3 | | Van Taylor (R) | No Open seat; replaced Sam Johnson (R) | Texas Senate Texas House of Representatives U.S. Marine Corps Major | 1972 | |
Texas 5 | | Lance Gooden (R) | No Open seat; replaced Jeb Hensarling (R) | Texas House of Representatives | 1982 | |
Texas 6 | | Ron Wright (R) | No Open seat; replaced Joe Barton (R) | Tarrant County Tax Assessor-Collector Chief of staff to Representative Joe Barton Arlington City Council | 1953 | |
Texas 7 | | Lizzie Fletcher (D) | Yes Defeated John Culberson (R) | Attorney | 1975 | |
Texas 16 | | Veronica Escobar (D) | No Open seat; replaced Beto O'Rourke (D) | El Paso County Judge El Paso County Commission | 1969 | |
Texas 21 | | Chip Roy (R) | No Open seat; replaced Lamar Smith (R) | Chief of staff to Senator Ted Cruz | 1972 | |
Texas 29 | | Sylvia Garcia (D) | No Open seat; replaced Gene Green (D) | Texas Senate Harris County Commission Houston City Controller | 1950 | |
Texas 32 | | Colin Allred (D) | Yes Defeated Pete Sessions (R) | Professional football player Lawyer | 1983 | |
Utah 4 | | Ben McAdams (D) | Yes Defeated Mia Love (R) | Mayor of Salt Lake County Utah State Senate | 1974 | |
Virginia 2 | | Elaine Luria (D) | Yes Defeated Scott Taylor (R) | U.S. Navy Commander | 1975 | |
Virginia 5 | | Denver Riggleman (R) | No Open seat; replaced Tom Garrett (R) | National Security Agency contractor U.S. Air Force ISR Agency | 1970 | |
Virginia 6 | | Ben Cline (R) | No Open seat; replaced Bob Goodlatte (R) | Virginia House of Delegates | 1972 | |
Virginia 7 | | Abigail Spanberger (D) | Yes Defeated Dave Brat (R) | Central Intelligence Agency | 1979 | |
Virginia 10 | | Jennifer Wexton (D) | Yes Defeated Barbara Comstock (R) | Senate of Virginia | 1968 | |
Washington 8 | | Kim Schrier (D) | Yes Open seat; replaced Dave Reichert (R) | Pediatrician | 1968 | |
West Virginia 3 | | Carol Miller (R) | No Open seat; replaced Evan Jenkins (R) | West Virginia House of Delegates | 1950 | |
Wisconsin 1 | | Bryan Steil (R) | No Open seat; replaced Paul Ryan (R) | University of Wisconsin Board of Regents | 1981 | |