Party Switching, although infrequent over history, has been a frequent event in the past 20 or so years, especially in the House. Below is a list of House Member’s who are known to have switched political party affiliations during their terms in the House.

Alexander Orr (KY) - Joined Republicans in 1794
George Mitchell (MD) - Joined Jacksonians in 1824
Robert B. Campbell (SC) - Joined Nullifiers in 1832
John Bell (TN) - Joined Anti-Jackson in 1834; Joined Whigs in 1836
Seaton Grantland (GA) - Joined Democrats in 1836
John Campbell (SC) - Joined Nullifiers in 1836; Joined Dem. in 1838
Lewis D. Campbell (OH) - Joined GOP in 1856; Joined Democrats in 1870
Reuben Eaton Fenton (NY) - Joined GOP in 1856
Galusha Grow (PA) - Joined GOP in 1856
Nathan Dixon (RI) - Joined GOP in 1862
John Logan (IL) - Joined GOP in 1866
William B. Campbell (TN) - Joined Unionists in 1864
Vito Marcantonio (NY)- Joined American Labor in 1938
Albert Watson (SC) - Joined GOP in 1965
Peter Peyser (NY) - Joined GOP in April 1977
Ogden Reid (NY) - Joined Dem Party 03/22/72
Donald Riegle (MI) - Joined Dem Party in 1973
John Jarman (OK) - Joined GOP 1/24/75
Eugene Atkinson (PA) - Joined GOP in 1981
Bob Stump (AZ) - Joined GOP in 1982
Phil Gramm (TX) - Joined GOP in 1983
Andy Ireland (FL) - Joined GOP 7/05/84
Bill Grant (FL) - Joined GOP 2/21/89
Tommy Robinson (AR) - Joined GOP 7/28/89
Jimmy Hayes (LA) - Joined GOP 12/1/95
Mike Parker (MS) - Joined GOP 11/10/95
W.J. "Billy" Tauzin (LA) - Joined GOP 8/6/95
Greg Laughlin (TX) - Joined GOP 6/26/95
Nathan Deal (GA) - Joined GOP 4/10/95
Wes Watkins (OK) - Democrat in the House 1976-90, Joined GOP 1996
Michael Forbes (NY) - Joined Democrats 7/17/99
Virgil Goode (VA) - Dem. to Independent 1/24/00; Joined GOP 8/1/02
Matthew Martinez (CA) - Joined GOP 7/26/00
Ralph Hall (TX) - Joined GOP 1/2/04
Rodney Alexander (LA) - Joined GOP 8/6/04