Try this list on for size:
Senator John Ensign (R-NV.) confessed to serious cheating on his wife with a staffer and caught paying hush money to the husband, his chief of staff.
Gov. Mark Sanford (R-S.C.), confessed to serious cheating on his wife after leaving his state unsupervised for a week.
Senator Larry Craig (R-ID.), caught in a gay sex sting operation in a Minn. bathroom.
Senator David Vitter (R-LA), found to have been a client of prostitutes in D.C. & Louisiana.
Rep. Mark Foley, (R-Fl.) forced to resign when he was found to be having inappropriate communications with male pages.
In Connecticut, the holier-than-thou Republican party chose the mayor of one of the state's largest cities as its candidate for the U.S. Senate. If Joe Lieberman had caved in to Republican demands in the year 2000 that he not run for relection to the senate at the same time that he was running for the vice presidency, then our nation would have had a Republican Senator from Conn., named Philip Giordano at least until he was sentenced to serve his 37 year sentence in Federal prison as a result of the FBI investigating him for financial shenanigans and discovering in the process that this crooked, disgusting Republican office holder had been repeatedly molesting two pre-teen little girls related to his prostitute-mistress (in the mayor's office among other places).
Bob Packwood, Senator (R-Ore.), resigned in 1995 under a threat of public senate hearings related to 10 female ex-staffers accusing him of sexual harassment.
More here (if you can stand it):
http://www.jesusnorepublican.org/about/gopimmorality.html