District Image Representative Switched party Prior background Birth year Ref Alabama 2 Bobby Bright (D) Yes Open seat; replaced Terry Everett (R) Mayor of Montgomery 1952 [ 23] Alabama 5 Parker Griffith (D) No [ f] Open seat; replaced Bud Cramer (D) Alabama Senate U.S. Army Medical Corps 1942 [ 24] Arizona 1 Ann Kirkpatrick (D) Yes Open seat; replaced Rick Renzi (R) Arizona House of Representatives 1950 [ 25] California 4 Tom McClintock (R) No Open seat; replaced John Doolittle (R) California State Senate California State Assembly 1956 [ 26] California 52 Duncan D. Hunter (R) No Open seat; replaced Duncan L. Hunter (R) Real estate developer U.S. Marine Corps Major 1976 [ 27] Colorado 2 Jared Polis (D) No Open seat; replaced Mark Udall (D) Colorado State Board of Education 1975 [ 28] Colorado 4 Betsy Markey (D) Yes Defeated Marilyn Musgrave (R) Legislative aide 1956 [ 29] Colorado 6 Mike Coffman (R) No Open seat; replaced Tom Tancredo (R) Secretary of State of Colorado Colorado State Treasurer Colorado Senate Colorado House of Representatives U.S. Marine Corps Major 1955 [ 30] Connecticut 4 Jim Himes (D) Yes Defeated Chris Shays (R) Greenwich Housing Authority Vice President of Goldman Sachs 1966 [ 31] Florida 8 Alan Grayson (D) Yes Defeated Ric Keller (R) Businessman 1958 [ 32] Florida 15 Bill Posey (R) No Open seat; replaced Dave Weldon (R) Florida Senate Florida House of Representatives Rockledge City Council 1947 [ 33] Florida 16 Tom Rooney (R) Yes Defeated Tim Mahoney (D) U.S. Army Judge Advocate General's Corps 1970 [ 34] Florida 24 Suzanne Kosmas (D) Yes Defeated Tom Feeney (R) Florida House of Representatives 1944 [ 35] Idaho 1 Walt Minnick (D) Yes Defeated Bill Sali (R) Staff assistant to President Richard Nixon U.S. Army First Lieutenant 1942 [ 36] Illinois 11 Debbie Halvorson (D) Yes Open seat; replaced Jerry Weller (R) Illinois Senate Crete Township Clerk 1958 [ 37] Illinois 18 Aaron Schock (R) No Open seat; replaced Ray LaHood (R) Illinois House of Representatives Peoria Board of Education 1981 [ 38] Kansas 2 Lynn Jenkins (R) Yes Defeated Nancy Boyda (D) Kansas State Treasurer Kansas Senate Kansas House of Representatives 1963 [ 39] Kentucky 2 Brett Guthrie (R) No Open seat; replaced Ron Lewis (R) Kentucky Senate U.S. Army First Lieutenant 1964 [ 40] Louisiana 2 Joseph Cao (R) Yes Defeated William Jefferson (D) Professional advocate 1967 [ 41] Louisiana 4 John Fleming (R) No Open seat; replaced Jim McCrery (R) Webster Parish Coroner U.S. Navy 1951 [ 42] Louisiana 6 Bill Cassidy (R) Yes Defeated Don Cazayoux (D) Louisiana State Senate Physician 1957 [ 43] Maine 1 Chellie Pingree (D) No Open seat; replaced Tom Allen (D) Maine Senate 1955 [ 44] Maryland 1 Frank Kratovil (D) Yes Replaced Wayne Gilchrest (R), who was defeated in a primary Queen Anne's County State's Attorney 1968 [ 45] Michigan 7 Mark Schauer (D) Yes Defeated Tim Walberg (R) Michigan Senate Michigan House of Representatives Battle Creek City Commission 1961 [ 46] Michigan 9 Gary Peters (D) Yes Defeated Joe Knollenberg (R) Michigan Lottery Commissioner Michigan Senate Rochester Hills City Council Navy Supply Corps Lieutenant Commander 1958 [ 47] Minnesota 3 Erik Paulsen (R) No Open seat; replaced Jim Ramstad (R) Minnesota House of Representatives 1965 [ 48] Mississippi 3 Gregg Harper (R) No Open seat; replaced Chip Pickering (R) Brandon City Prosecutor Richland City Prosecutor Chair of the Rankin County Republican Party 1956 [ 49] Missouri 9 Blaine Luetkemeyer (R) No Open seat; replaced Kenny Hulshof (R) Missouri Tourism Director Missouri House of Representatives St. Elizabeth Board of Trustees 1952 [ 50] Nevada 3 Dina Titus (D) Yes Defeated Jon Porter (R) Nevada Senate Political science professor 1950 [ 51] New Jersey 3 John Adler (D) Yes Open seat; replaced Jim Saxton (R) New Jersey Senate Cherry Hill Township Council 1959 [ 52] New Jersey 7 Leonard Lance (R) No Open seat; replaced Mike Ferguson (R) New Jersey Senate New Jersey General Assembly 1952 [ 53] New Mexico 1 Martin Heinrich (D) Yes Open seat; replaced Heather Wilson (R) Albuquerque City Council 1971 [ 54] New Mexico 2 Harry Teague (D) Yes Open seat; replaced Steve Pearce (R) Lea County Board of Commissioners 1949 [ 55] New Mexico 3 Ben Ray Luján (D) No Open seat; replaced Tom Udall (D) New Mexico Public Regulation Commission 1972 [ 56] New York 13 Michael McMahon (D) Yes Open seat; replaced Vito Fossella (R) New York City Council 1957 [ 57] New York 21 Paul Tonko (D) No Open seat; replaced Michael McNulty (D) President of the NYSERDA New York State Assembly Montgomery County Board of Supervisors 1949 [ 58] New York 25 Dan Maffei (D) Yes Open seat; replaced James T. Walsh (R) Congressional staffer 1968 [ 59] New York 26 Chris Lee (R) No Open seat; replaced Thomas M. Reynolds (R) Businessman 1964 [ 60] New York 29 Eric Massa (D) Yes Defeated Randy Kuhl (R) Congressional staffer U.S. Navy Lieutenant Commander 1959 [ 61] North Carolina 8 Larry Kissell (D) Yes Defeated Robin Hayes (R) Businessman 1951 [ 62] Ohio 1 Steve Driehaus (D) Yes Defeated Steve Chabot (R) Ohio House of Representatives Peace Corps 1966 [ 63] Ohio 7 Steve Austria (R) No Open seat; replaced Dave Hobson (R) Ohio Senate Ohio House of Representatives 1958 [ 64] Ohio 15 Mary Jo Kilroy (D) Yes Open seat; replaced Deborah Pryce (R) Franklin County Board of Commissioners Columbus Board of Education 1949 [ 65] Ohio 16 John Boccieri (D) Yes Open seat; replaced Ralph Regula (R) Ohio Senate Ohio House of Representatives U.S. Air Force Reserve Colonel 1969 [ 66] Oregon 5 Kurt Schrader (D) No Open seat; replaced Darlene Hooley (D) Oregon State Senate Oregon House of Representatives Veterinarian 1951 [ 67] Pennsylvania 3 Kathy Dahlkemper (D) Yes Defeated Phil English (R) Co-founder of the Lake Erie Arboretum 1957 [ 68] Pennsylvania 5 Glenn Thompson (R) No Open seat; replaced John Peterson (R) Chair of the Centre County Republican Party Bald Eagle School Board Rehabilitation therapist manager 1959 [ 69] Tennessee 1 Phil Roe (R) No Defeated David Davis (R) in a primary Mayor of Johnson City Johnson City Board of Commissioners U.S. Army Medical Corps 1945 [ 70] Texas 22 Pete Olson (R) Yes Defeated Nick Lampson (D) Congressional staffer U.S. Navy Lieutenant Commander 1962 [ 71] Utah 3 Jason Chaffetz (R) No Defeated Chris Cannon (R) in a primary Utah Valley Board of Trustees Chief of staff to Governor Jon Huntsman Jr. 1967 [ 72] Virginia 2 Glenn Nye (D) Yes Defeated Thelma Drake (R) USAID staff member U.S. Foreign Service officer 1974 [ 73] Virginia 5 Tom Perriello (D) Yes Defeated Virgil Goode (R) Entrepreneur 1974 [ 74] Virginia 11 Gerry Connolly (D) Yes Open seat; replaced Tom Davis (R) Fairfax County Board of Supervisors 1950 [ 75] Wyoming at-large Cynthia Lummis (R) No Open seat; replaced Barbara Cubin (R) Wyoming State Treasurer Wyoming Senate Wyoming House of Representatives 1954 [ 76]