"The president stressed that this is a personal position, and that he still supports the concept of states’ deciding the issue on their own. But he said he’s confident that more Americans will grow comfortable with gays and lesbians getting married, citing his own daughters’ comfort with the concept." - View the complete report at abc.com.
Obama’s likely Republican opponent, Mitt Romney, opposes gay marriage. “My view is that marriage is a relationship between a man and a woman,” Romney said. “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.” (Source)