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DHS Dep. Sec.: 'Russia seizes on' Trump's statements on mail-in voting

10:29

The Acting Deputy Secretary of the Department of Homeland Security, Ken Cuccinelli joins Hallie Jackson to discuss the threat of domestic terrorism as well as foreign election interference. Cuccinelli argues that "we can't let Vladimir Putin dictate our election" but admits the "President has his own views" when it comes to combatting the issue.