Updated at 9:15 p.m. ET
As President Trump's legal team pressed the case for acquittal on Monday, they repeatedly made two points: the charges against Trump do not meet the constitution's criteria for impeachment. And if the president is removed from office for abuse of power and obstruction of Congress, it will set a "dangerous" precedent.
"You cannot turn conduct that is not impeachable into impeachable conduct simply by using words like quid pro quo," said one of Trump's lawyers, Alan Dershowitz, calling the charges "vague, indefinable."