Mueller witness unloads on obstruction case against Trump aide

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Mueller witness Randy Credico, named as “Person 2” in the indictment of Roger Stone joins Ari Melber exclusively for his first remarks since the Stone indictment. Melber questions Credico about why Roger Stone lied to lawmakers, even though Mueller did not charge a conspiracy to collude with Russia. Credico reveals he “believes” Michael Cohen who alleges that Stone “called up” Trump about the Wikileaks hack of Clinton emails during the campaign and that Trump will likely ultimately pardon Stone.