Tom Messner and Ryan T. Anderson in the Heritage's Foundry blog:

Yesterday, President Obama announced that he supports same-sex marriage. This was not exactly a surprise.

Sure, when running for Senate in 2004, Obama said that “marriage is between a man and a woman.” And when campaigning for the presidency in 2008, he restated that view and also claimed he did “not support gay marriage.”

The truth, however, is that President Obama has repeatedly done and said things that directly undermine marriage as one man and one woman.

President Obama has openly opposed state marriage amendments, such as Proposition 8 in California and the hugely successful amendment adopted by voters in North Carolina earlier this week. These amendments would protect marriage from judicial activism in state courts and let voters decide the question through democratic processes. But Obama views such measures as “divisive” and “discriminatory.”

President Obama also supports repealing the Defense of Marriage Act (DOMA), a federal law that defines marriage as the union of one man and one woman for purposes of federal law. And President Obama’s Justice Department has taken extraordinary steps to undermine DOMA in the courts, first by offering a soft defense and then by offering no defense at all.

These seeming inconsistencies led many to conclude that the President wasn’t really against gay marriage but was saying so for political reasons. Now, the President has finally owned up to what many people already suspected: that he supports same-sex marriage.