Rick Santorum's campaign has put out an, um, interesting new 30-second attack ad called Rombo, which features a Mitt Romney lookalike walking around a warehouse with an automatic rifle, firing at a cardboard cut-out of Rick Santorum. At the end of the ad, Romney's gun backfires and he gets hit with what the Christian Science Monitor calls a dirt slurry. 

There's a lot to love (or hate) about the ad, but the Romney lookalike—who manages to resemble Mitt Romney, Ronald Reagan, and Rick Perry all at once—is a no doubt a highlight. The ad appears to be genuine, having been uploaded on Rick Santorum's official YouTube channel, and featuring the Authorized by Rick Santorum disclaimer at the end.