It wasn't a mistake. Obama was using "my Muslim faith" in quotation marks, as in "my supposed Muslim faith" -- i.e., the suspicions that he was a Muslim, exactly what Stephy had asked him about. Stephanopolous thought he misspoke, but he didn't. In fact, given Stephy's question, it would not even make any sense for Obama to refer to "my Christian faith" in that context.
In other words, this does nothing to show that Hussein is a Muslim. It just shows that Stephanopolous is dumb, which we already knew.
Then why did he correct himself? Ain’t EVEN buying that one.
I'm not buying that at all. First, he didn't stress the words when he said "My muslim faith" nor did he look like he was giving any kind of air fingers quote-- or anything close to that.
It was an obvious slip of the tongue