WASHINGTON — When Bill Clinton was president, he waited until almost 1 in the morning in 1996 to sign a bill defining marriage as the union of a man and a woman. He did not like it, but was unwilling to veto it 45 days before an election.

Read more in The New York Times: http://www.nytimes.com/2012/05/11/us/same-sex-marriage-support-shows-pace-of-social-change-accelerating.html?hpw