Expert: There's one argument for Trump's impeachment that will solidify public support against the former president

Constitutional law expert Laurence Tribe revealed why he predicts public opinion will solidify against Donald Trump during his second impeachment trial.

The Harvard Law professor was interviewed by CNN's Erin Burnett on Monday, one day before the start of the Senate impeachment trial.

Tribe, who has tried three-dozen cases before the U.S. Supreme Court explained that the case being made against Trump for inciting insurrection was a case of treason.

"As to the proof, it is absolutely compelling and when the nation watches in chilling detail how the president exulted in the mob that crushed and killed cops and threatened to take the life of the vice president and threatened to assassinate the Speaker of the House," he explained.

"I think that the country's opinion will solidify against the president of the United States -- at least the guy that was president when he violated his oath and he committed what amounts to treason," he continued.

"And I use that word carefully, because he was waging war against the United States, what Article III [of the Constitution] defines as treason.," Tribe explained.

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