A new Hillary ClintonHillary Diane Rodham ClintonGOP rushes to cut ties to Moore Papadopoulos was in regular contact with Stephen Miller, helped edit Trump speech: report Bannon jokes Clinton got her ‘ass kicked’ in 2016 election MORE presidential ad takes aim at her “dangerous” Republican rivals. 

“Think about it. One of these Republicans could actually be president,” the ad’s narrator says as Republican presidential candidates Donald TrumpDonald John TrumpDems win from coast to coast Falwell after Gillespie loss: 'DC should annex' Northern Virginia Dems see gains in Virginia's House of Delegates MORE and Ted CruzRafael (Ted) Edward CruzOvernight Finance: GOP criticism of tax bill grows, but few no votes | Highlights from day two of markup | House votes to overturn joint-employer rule | Senate panel approves North Korean banking sanctions GOP criticism of tax bill grows, but few ready to vote against it Anti-gay marriage county clerk Kim Davis to seek reelection in Kentucky MORE are shown talking about bombing American enemies. 

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“They’re backward, even dangerous,” the narrator adds, saying that Clinton is the only Democrat who “can stop them.” 

The ad, titled “Incredible,” is set to air in New Hampshire and Iowa.  

A Republican National Committee spokesman slammed Clinton for "doubling down" on "failure." 

"Under President Obama we've become less prosperous, less safe, and less free but incredibly Hillary Clinton wants to not only double down but expand on this legacy of failure," spokesman Michael Short said in a statement. 

Watch the ad above. 

--Updated at 7:40 p.m.