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Fmr. U.S. Attorney: Idea that Russia probe is 'witch hunt' has been "put to rest"
A new investigation reveals that a basis for the FBI's Russia probe was a tip from allied intelligence officers, and not the infamous Steele dossier as many of the probe's detractors have claimed. Former U.S. attorney Barbara McQuade discusses how this may shape the investigation as it grinds forward. Sheinelle Jones in for Alex.