Obama's Support of Marriage Equality

I'm going to start out by saying that I am in full support of gay marriage, it is a basic human right and it is ridiculous that it is being denied to some because of their sexual orientation. But Obama's public announcement of his support for gay marriage is nothing more than a campaign move, he has been in office for four years and he could have expressed his feelings about this at another time. I understand that he is a politician and this is what he is supposed to do to get people to vote for him. At this point I really don't think that he can even do anything about the subject. Marriage licenses are issued by the state governments, so defining marriage is up to the state, it would be denying states rights if congress voted in favor or against gay marriage. Yeah it is morally right to have gay marriage, but as our government is set up Obama cannot change any laws about it. Having said that, it is nice to see such a prominent, arguably the most prominent, politician be so adamantly in support of gay marriage, it means that the tides are changing. I truly believe either the next generation of politicians or our generation of politicians will legalize gay marriage.