Melber: 'We just watched Ken Starr punch himself in the face'

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MSNBC chief legal analyst Ari Melber shares his take on Kenneth Starr's testimony during the impeachment trial of President Donald Trump, calling it a "total, unmitigated legal and constitutional disaster," and that "Ken Starr was out there shadowboxing with himself... and constitutionally, we just watched Ken Starr punch himself in the face and then walk off the floor."