Former House Speaker Newt Gingrich, R-Ga., pictured with his wife Marianne, on Jan. 7, 1997. Gingrich began his relationship with Marianne while still married to Jackie Gingrich, and later had an affair with Callista Bisek while married to Marianne. Marianne said she rejected Newt's suggestion of an open marriage on ABC's "Nightline" on Jan. 19, 2012, as he campaigned in the Republican presidential primary election.
Rep. Barney Frank, D-Mass., the first openly gay member of the House of Representatives, leaves a news conference on Aug. 25, 1989, in Newton, Mass., after answering questions about hiring a male prostitute as a personal employee in 1986. Investigators alleged Frank paid Steve Gobie to work for him while he lived in Frank's home and used it as a bordello, though the House Ethics Committee later determined Frank was unaware of the situation. Frank served in Congress until Jan. 3, 2013.