President Obama's likely Republican opponent, Mitt Romney, opposes gay marriage.
On Monday, on the campaign trail, he said:
"My view is that marriage is a relationship between a man and a woman.
"That's the position I've had for some time, and I don't intend to make any adjustments at this point. … Or ever, by the way."
George Clooney's dinner is expected to raise up to $15 million for Obama's re-election campaign, a record for a single political fundraising
President Obama coming out an expressing his support for same-sex marriage is an intriguing political calculation.