NBC veteran Tom Brokaw discusses comparisons between Pres. Trump and Pres. Nixon

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NBC journalist and author of "The Fall of Richard Nixon: A Reporter Remembers Watergate", Tom Brokaw joins the Morning Joe panel to compare and contrast President Trump and President Nixon's impeachment proceedings: "There are not many parallels, quite honestly ... this president is fully involved, using social media for his own purposes. We didn't have any of that at that time."