Bye bye, John Ensign:

Nevada Senator John Ensign announced on Thursday his resignation from the Senate, the AP reported.

The two-term Republican who opposes gay rights, including giving gay and lesbian couples the right to marry, acknowledged in June, 2009 that he had a nine-month affair in 2008 with Cynthia “Cindy” Hampton, a former member of his Senate campaign staff. He also admitted having helped her husband, Doug Hampton, a member of his Congressional staff, get lobbying work.

The 53-year-old Ensign, who was considered a rising star of the GOP and possible presidential material, is under investigation by the Senate Ethics Committee.

[...]

In 2004, Ensign urged Congress to pass a constitutional amendment banning gay marriage, saying “Marriage is the cornerstone on which our society was founded.”

Quite a loose cornerstone for Mr. Ensign!