It might be preaching to the choir, but the members of this choir are precisely the people Mitt Romney needs to stop John McCain from getting a stranglehold on the Republican nomination on Super Tuesday.
Romney aired an ad today on Rush Limbaugh's radio show that excoriates McCain's record on taxes and immigration.
"John McCain, he's been in Washington a long time," the announcer says, before the ad cites conservative commentators and the National Review.
Limbaugh, while not explicitly endorsing Romney, has been warning his listeners for weeks that McCain's nomination would destroy the Republican Party. He repeated those warnings again today. Romney and McCain have been sparring over who is the true conservative.