Michael Foust has done some fantastic reporting contrasting Romney’s and Obama’s records on gay marriage. There is a real difference here, and Foust reminds us of the strong stand that Romney took when he was governor of Massachusetts. Foust writes:
Romney was governor of Massachusetts when the state’s highest court issued its first-in-the-nation decision legalizing gay marriage, and he not only fought to have the ruling overturned but also supported an amendment to the U.S. Constitution that would define marriage as between a man and a woman.
Obama voted against that federal marriage amendment as a U.S. senator, and once he was president he became the first sitting U.S. president to oppose the Defense of Marriage Act and also to endorse gay marriage.
The rest of the article goes into much more detail on the history. Read it here.