Sen. Blumenthal: Cohen Spilling secrets should 'rattle' Trump Jr.

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Democratic Senator Richard Blumenthal joins Ari Melber to discuss the latest advancement in the Mueller probe: former Trump lawyer Michael Cohen’s guilty plea, which reveals that someone inside the Trump Organization was actively doing outreach to the Kremlin during the 2016 election. Blumenthal tells Melber that the latest the Cohen revelations should “rattle” President Trump’s son, Donald Trump Jr., who was also a witness before Congress.