positively confused on the matters since Vice President Biden seems like he's come out in favor of it.
Like many other politicians, Obama's opinion on the marriage issue will probably continue to "evolve" until the political benefit of being in favor of it clearly exceeds the political benefit of being opposed to it.
Then, when the political winds have fully shifted, he will announce his new position to accolades by his secular liberal supporters who will call him courageous for taking the new position--the one that would have been courageous had he made it when there was a real cost (rather than a political benefit) to taking it.
The fact is, there are few social costs to being gay and few political costs in most places to being in favor of same-sex "marriage." With the exception of much of rural America, where, for the most part, boys are expected to act like boys and girls like girls, being gay is positively celebrated and same-sex marriage seen as social progress.
The only real courage is among those who continue to believe what they've always believed on these issues and whose opinions, being based on solid moral convictions, don't change because of shifting political winds.