Jon Huntsman has published a new web ad hammering Romney for changing, if not his stance, then at least his tone on key campaign issues.

"What exactly did Mitt learn while running the Olympics?" the ad asks, before using a split screen to show Romney opining on various issues next to video of gymnasts doing flips on balance beams. Romney ran the 2002 Winter Olympics in Salt Lake City, where there was no gymnastics competition, but the point doesn't seem to be a literal one. Whenever Romney is seen taking a typically conservative stance on an issue, the gymnast "nails it," and when he doesn't, the gymnast falls off the beam.

For example, one clip shows Romney defending the "tough gun laws in Massachusetts" -- "I support them, I won't chip away at them," he says -- as a gymnast tumbles. The next clip shows him saying he's "always been, if you will, a rodent and rabbit hunter," as a gymnast lands a back flip on the beam.

Here's the ad in full: