Republicans are so convinced that the Benghazi attacks will be Hillary Clinton's undoing, that the likely successor to Speaker John Boehner, Rep.Kevin McCarthy, bragged about it on Fox News.

"Everybody thought Hillary Clinton was unbeatable, right?” McCarthy told Fox’s Sean Hannity, “But we put together a Benghazi special committee, a select committee. What are her numbers today? Her numbers are dropping. Why? Because she's untrustable. But no one would have known any of that had happened had we not fought and made that happen."

Democrats pounced, saying McCarthy's comments prove the Benghazi committee is politically motivated.

Hillary Clinton's Campaign Rips Rep. Kevin McCarthy

And now the Clinton campaign has an online video slamming McCarthy, trying to turn Benghazi from a negative to a positive.

On "The Briefing," a Clinton campaign project to enlist supporters to "help fight back against false attacks," a video featuring Clinton’s Press Secretary Brian Fallon, walks viewers through the McCarthy gaffe.

After showing the Fox clip twice, Fallon says to the camera, "at least he's being honest, but this is a big deal."

Fallon then lays out the case against the committee: "This committee... is actually a taxpayer-funded sham... If it seems to you like Republicans are playing electoral politics with a terrorist attack, well, now it sounds like you're right... And guess who's picking up the tab. You are! To tune of 4.5 million dollars, and more every minute."

And he previews Clinton's scheduled Oct. 22 appearance before the committee, portraying her participation as honorable in the face of a "political hit job": "Despite this disturbing admission... Hillary Clinton is still planning to appear before the Benghazi committee... She'll answer whatever questions they have... But... the GOP can no longer claim this investigation they're running is at all serious or credible."

"The Briefing" Pumps Talking Points To Clinton Supporters

The video is available on The Briefing's YouTube channel, not the main campaign YouTube channel. And it's distributed to supporters who sign up for emails from The Briefing. Most people may not hear of it and wouldn't know where to find it.

But the goal is not to persuade undecided voters. The goal is to pump talking points to supporters who might get demoralized upon seeing so much negative media coverage, and give them guidance in their water-cooler debates. The tactic works by creating an army of volunteers to amplify the message being delivered by the candidate.

In this case, it's only going to work if she has a hell of a performance in front of the Benghazi committee.

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