Ok....maybe better said that more now favor gay marriage than oppose it.

Obama's Gay Marriage Support: LGBT Rights Pioneers See History In President's Stand

"President Barack Obama's declaration Wednesday that he supports gay marriage may have lacked the urgency of Kennedy's 1963 push for the Civil Rights Act, or the force and finality of the Emancipation Proclamation, but it was still being greeted as a major milestone among people who care about gay rights." (from above linked Huffington Post artcile on Obama and the LGBT

US election: Mitt Romney leads Republican attack on Barack Obama and gay marriage - Telegraph

"Mr Romney proposes amending the US Constitution to outlaw gay marriage forever. Republican strategists believe that his sharp opposition to Mr Obama’s position could hand him a prime opportunity to energise the party’s Right-wing “base”.

Many conservative voters remain sceptical of Mr Romney, a former management consultant and private equity executive, because of moderate positions he took on social issues while running for office in liberal-leaning Massachusetts." from above linked article on Romney and the attack on gay marraiage

Public opinion of same-sex marriage in the United States - Wikipedia, the free encyclopedia