Corey Brettschneider is professor of political science at Brown University, where he teaches constitutional law and politics, as well as visiting professor of law at Fordham Law School. His new book is “The Oath and The Office: A Guide to the Constitution for Future Presidents,” which Kirkus called “required reading for all Americans.”

“It’s not just about the crime that it looks like Michael Cohen said he (Trump) is also guilty of committing. It’s also about the travel ban, the disregard of the oath. And it’s up to Congress to make that call what a high crime and misdemeanor is. I’ve seen enough – personally – certainly to think that when this next Congress is elected, part of what they should be running on is impeachment.” Professor Corey Brettschneider, author of “The Oath and the Office: A Guide to the Constitution for Future Presidents”