Bill Burton: 'What fact in the ad is wrong?'

Blitzer: 'The impression that you get that he killed her!'

Priorities USA founder Bill Burton defended the super PAC's ad Wednesday in an interview with CNN's Wolf Blitzer and Kate Bolduan.

BLITZER: It's inaccurate, it's not responsible, it's misleading--you're still going to go ahead and play it.

BURTON: Well, Wolf, just like we just talked about: What this ad does is tell the story of one guy and the impact that Mitt Romney had on him.

BLITZER: It's misleading to tell--

BURTON: Well, this is your opinion. But, but--

BLITZER: Most independent fact-checkers, and we're independent--

BURTON: What fact in that ad is wrong?

BLITZER: The impression that you get that he killed her.

BURTON: So you're saying that that's an impression.

BLITZER: Anyone who watches that 60-second ad comes away and says, "Mitt Romney's responsible, at least indirectly, for this lovely woman's death."

BURTON: I just don't think that's true. And we would never make that case. The point of the ad--

BOLDUAN: Well then, the ad fails, because that's the message you take away from it, Bill. Whatever message was intended in this commercial is not--nobody hears.

BURTON: It's clearly lost on some folks, make no mistake about that. But the truth is, is that what this ad is about, is what Mitt Romney wants his campaign to be about.