The billboards are all in swing or Republican-leaning districts. The targets: GOP Reps. Andy BarrGarland (Andy) Hale BarrRepublican candidate favored in Arizona special House election Overnight Energy: Trump energy adviser leaving for lobbying job | Zinke decides against lowering offshore royalty rates | Greens fight Coast Guard bill GOP House super PAC reserves million in fall TV ads 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.