McCain (voiceover): I'm John McCain and I approve this message.

[Music] Male Announcer: Mitt Romney on Ronald Reagan.

Romney (clip): Look, I was an Independent during the time of Reagan-Bush. I'm not trying to return to Reagan-Bush.

Male Announcer: Mitt Romney was against Ronald Reagan before he was for him.

Romney (clip): Yeah, I voted in the Democratic Primary. ... When I was running in '94, I wasn't trying to return to Reagan-Bush.

Announcer: If we can't trust Mitt Romney on Ronald Reagan, how can we trust him to lead America?