The billboards are all in swing or Republican-leaning districts. The targets: GOP Reps. Andy BarrGarland (Andy) Hale BarrLexington mayor launches bid for Congress Flake's exit gives GOP new hope in Arizona Overnight Defense: Senate panel to get classified Niger briefing | Corker, Trump feud heats up | House passes North Korea sanctions MORE (Ky.), Dan BenishekDaniel (Dan) Joseph BenishekRepublican groups launch final ad blitz in key House battlegrounds Tea Party class reassesses record Michigan Republican to retire MORE (Mich.), Steve Daines (Mont.), Rodney Davis (Ill.), Jeff Denham (Calif.), Tom Latham (Iowa), Steve Southerland (Fla.), Jackie Walorski (Ind.), Dan Webster (Fla.) and Bill Young (Fla.).

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Walorski, Davis and Barr are freshmen while Benishek, Denham, Latham and Webster all beat back tough challengers last election. Young, Southerland and Daines won comfortably in 2012.

The National Republican Congressional Committee fired back.

"The only thing that's radical is the Democrats' plan to never, ever balance our nation's budget – and that's causing a lot more whiplash for voters than these silly billboards will," NRCC spokesman Daniel Scarpinato said.

This post was updated at 4:40 p.m.