Photos clockwise from top left: Brendan Smialowski / AFP-Getty Images; Mark Humphrey / AP; Jacquelyn Martin / AP; Barry Chin / The Boston Globe via Getty Images
Mark Sanford
Mic Smith/AP
Scott DesJarlais
Mark Humphrey / AP
Jesse Jackson Jr.
Yuri Gripas / Reuters-Landov (FILE)
Vito Lopez
Mike Groll / AP (FILE)
John Tierney
Barry Chin / The Boston Globe via Getty Images
Michael Grimm
Jacquelyn Martin / AP (FILE)
Tim Bishop
Seth Wenig / AP (FILE)
Marion Barry
Bonnie Jo Mount / The Washington Post via Getty Images (FILE)