For all of his weaknesses as a candidate, Jon Huntsman continues to be as effective an anti-Romney voice as anyone in politics. I wouldn’t be surprised to see portions from this exchange, from yesterday’s “Meet the Press,” in campaign ads over the next year.

HUNTSMAN: I think there is an, an issue on the flip-flops as it relates to trust. I don’t know that he can go on to beat President Obama, given, given his record. I mean, when there is a question about whether you’re running for the White House or running for the waffle house, you’ve got a real problem with the American people.

GREGORY: And his big flip-flop to you is what?

MR. HUNTSMAN: Well, I think there’s a range of them. But when you have something as central as life that you flip-flop on, when you have a Second Amendment, when you have health care, you have a range of issues that — on taxes, for example, that he’s been on both sides of. And I think that what the American people want today more than anything else is a level of consistency. They want trust. They want a level of trust in their elected officials.

The implication isn’t exactly subtle: a prominent Republican presidential candidate believes Americans just can’t trust Mitt Romney.

The on-air comments come on the heels of this new video from the Huntsman camp.

And this comes on the heels of the brutal flipping-toy-monkey flip-flop video, which was soon followed by the weathervane video.

It’s not just the frequency with which Jon Huntsman’s campaign goes after Mitt Romney that’s interesting; it’s how good Huntsman is at doing it.

Steve Benen

Follow Steve on Twitter @stevebenen. Steve Benen is a producer at MSNBC's The Rachel Maddow Show. He was the principal contributor to the Washington Monthly's Political Animal blog from August 2008 until January 2012.