Whatever you think of Mitt Romney, this one is pretty transparent: The Log Cabin Republicans have a new commercial out hitting Mitt Romney for flip-flops. It ends:

Narrator: …a record fighting the religious right …a pro-choice record… Massachusetts values…Mitt Romney.

Now the Log Cabin Republicans actually want Massachusetts values — or, at least one in particular: gay marriage. Romney, wherever he was in the past, is running as for a federal marriage amendment. Log Cabin knows this and doesn’t want him to be the nominee for this reason.