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New Hillary Clinton ad attacks Donald Trump as dangerous on nuclear weapons

02:41

The Clinton campaign is out with a new ad that references one of the most famous political ads ever, an ominous one from the height of the Cold War, trying to convey the message that Donald Trump is too dangerous to have command of the U.S. nuclear arsenal. The Trump campaign is dismissing it as a distraction from Clinton’s own controversies. NBC’s Hallie Jackson reports for TODAY.