James Campbell Cantrill
- 1920 – Kentucky’s 7th congressional district (D) – won
- 1922 – Kentucky’s 7th congressional district (D) – won
Israel Cantu
- 2000 – Texas’ 15th congressional district (W/I) – lost
Mitch Cantu
- 1984 – Georgia’s 3rd congressional district (R) – lost
Juana Cantu-Cabrera
- 2022 – Texas’ 34th congressional district (Special) (R) – lost
John M. Cantwell
- 1924 – New York’s 31st congressional district (D) – lost
Maria Ellen Cantwell
- 1992 – Washington’s 1st congressional district (D) – won
- 1994 – Washington’s 1st congressional district (D) – lost
- 2000 – United States Senate (Washington) (D) – won
- 2006 – United States Senate (Washington) (D) – won
- 2012 – United States Senate (Washington) (D) – won
- 2018 – United States Senate (Washington) (D) – won
Percy J. Cantwell
- 1922 – Rhode Island’s 2nd congressional district (D) – lost
Albert Franklyn Canwell
- 1952 – Washington’s at large congressional district (R) – lost
- 1954 – Washington’s at large congressional district (R) – lost
Anh Quang Cao
- 2008 – Louisiana’s 2nd congressional district (R) – won
- 2010 – Louisiana’s 2nd congressional district (R) – lost
- 2016 – United States Senate (Louisiana) (R) – lost first round
Hung Cao
- 2022 – Virginia’s 10th congressional district (R) – lost
Kenneth A. Capalbo
- 2006 – Rhode Island’s 1st congressional district (I) – lost
- 2008 – Rhode Island’s 1st congressional district (I) – lost
- 2010 – Rhode Island’s 1st congressional district (I) – lost
Alice A. Capatosto
- 1968 – New York’s 14th congressional district (CON) – lost
Elizabeth E. Capazzi
- 1984 – New York’s 3rd congressional district (RTL) – lost
Homer Earl Capehart
- 1944 – United States Senate (Indiana) (R) – won
- 1950 – United States Senate (Indiana) (R) – won
- 1956 – United States Senate (Indiana) (R) – won
- 1962 – United States Senate (Indiana) (R) – lost
Dominick A. Capelli
- 1970 – Pennsylvania’s 26th congressional district (R) – lost
Jean Murrell Capers
- 1998 – Ohio’s 11th congressional district (I) – lost
Shelley Wellons Moore Capito
- 2000 – West Virginia’s 2nd congressional district (R) – won
- 2002 – West Virginia’s 2nd congressional district (R) – won
- 2004 – West Virginia’s 2nd congressional district (R) – won
- 2006 – West Virginia’s 2nd congressional district (R) – won
- 2008 – West Virginia’s 2nd congressional district (R) – won
- 2010 – West Virginia’s 2nd congressional district (R) – won
- 2012 – West Virginia’s 2nd congressional district (R) – won
- 2014 – United States Senate (West Virginia) (R) – won
- 2020 – United States Senate (West Virginia) (R) – won
David I. Caplan
- 1980 – New York’s 20th congressional district (CON) – lost
Stan Caplan
- 2022 – California’s 51st congressional district (R) – lost
Ray J. Caplette
- 2010 – United States Senate (Arizona) (W/I) – lost
Caplington
- 1928 – Tennessee’s 5th congressional district (R) – lost
Ignazio Capnini
- 1936 – New York’s 26th congressional district (Comm.) – lost
Alvin D. Capozzi
- 1964 – Pennsylvania’s 14th congressional district (R) – lost
Arthur F. Capozzi, Jr.
- 1974 – United States Senate (Connecticut) (George Wallace) – lost
Louis Joseph Capozzoli
- 1940 – New York’s 13th congressional district (D) – won
- 1942 – New York’s 13th congressional district (D, American Labor) – won
Michael R. Cappelli
- 1960 – New York’s 24th congressional district (R) – lost
Arthur Capper
- 1924 – United States Senate (Kansas) (R) – won
- 1930 – United States Senate (Kansas) (R) – won
- 1936 – United States Senate (Kansas) (R) – won
- 1942 – United States Senate (Kansas) (R) – won
Keith Capper
- 1958 – United States Senate (Alaska) (W/I) – lost
David J. Cappiello
- 2008 – Connecticut’s 5th congressional district (R) – lost
O. Arthur Cappiello
- 1954 – Pennsylvania’s 7th congressional district (D) – lost
Lois Ragnhild Grimsrud Capps
- 1998 – California’s 22nd congressional district (Special) (D) – won
- 1998 – California’s 22nd congressional district (D) – won
- 2000 – California’s 22nd congressional district (D) – won
- 2002 – California’s 23rd congressional district (D) – won
- 2004 – California’s 23rd congressional district (D) – won
- 2006 – California’s 23rd congressional district (D) – won
- 2008 – California’s 23rd congressional district (D) – won
- 2010 – California’s 23rd congressional district (D) – won
- 2012 – California’s 24th congressional district (D) – won
- 2014 – California’s 24th congressional district (D) – won
Walter Holden Capps
- 1994 – California’s 22nd congressional district (D) – lost
- 1996 – California’s 22nd congressional district (D) – won
Frank Caprio
- 1972 – California’s 40th congressional district (D) – lost
S. Peter Capua
- 1974 – Florida’s 15th congressional district (R) – lost
Michael Everett Capuano
- 1998 – Massachusetts’ 8th congressional district (D) – won
- 2000 – Massachusetts’ 8th congressional district (D) – won
- 2002 – Massachusetts’ 8th congressional district (D) – won
- 2004 – Massachusetts’ 8th congressional district (D) – won
- 2006 – Massachusetts’ 8th congressional district (D) – won
- 2008 – Massachusetts’ 8th congressional district (D) – won
- 2010 – Massachusetts’ 8th congressional district (D) – won
- 2012 – Massachusetts’ 7th congressional district (D) – won
- 2014 – Massachusetts’ 7th congressional district (D) – won
- 2016 – Massachusetts’ 7th congressional district (D) – won
Bruce Faulkner Caputo
- 1976 – New York’s 23rd congressional district (R, CON) – won
Vic Caputo
- 1980 – Michigan’s 14th congressional district (R) – lost
Louis F. Capuzi
- 1952 – Illinois’ 7th congressional district (R) – lost
Roberto Caraballo
- 1992 – New Jersey’s 10th congressional district (L) – lost
Jean J. Caranel
- 1936 – New York’s 20th congressional district (S) – lost
Max Carasso
- 1978 – New York’s 13th congressional district (R, CON) – lost
Yadira D. Caraveo
- 2022 – Colorado’s 8th congressional district (D) – won
Sylvia Caravetta
- 2020 – Florida’s 21st congressional district (I-W/I) – lost
Hardy Caraway
- 1984 – Mississippi’s 2nd congressional district (I) – lost
- 2000 – Mississippi’s 2nd congressional district (R) – lost
Hattie Ophelia Wyatt Caraway
- 1932 – United States Senate (Arkansas) (D) – won
- 1938 – United States Senate (Arkansas) (D) – won
Thaddeus Horatius Caraway
- 1920 – United States Senate (Arkansas) (D) – won
- 1926 – United States Senate (Arkansas) (D) – won
Michael Carbajal, Jr.
- 1974 – New York’s 14th congressional district (R) – lost
Salud Ortiz Carbajal
- 2016 – California’s 24th congressional district (D) – won
- 2018 – California’s 24th congressional district (D) – won
- 2020 – California’s 24th congressional district (D) – won
- 2022 – California’s 24th congressional district (D) – won
Glenn Carberry
- 1988 – Connecticut’s 2nd congressional district (R) – lost
Anthony Carbone
- 1974 – New Jersey’s 12th congressional district (I) – lost
