President Donald Trump is now the first U.S. president to be impeached twice. This time, he’s accused of “inciting insurrection” after the deadly attack on the U.S. Capitol building. In a matter of days, President-elect Joe Biden is set to swear the same solemn oath President Trump made four years ago on his inauguration day: “to preserve, protect and defend the Constitution of the United States.” But how do you hold them accountable to that vow? Corey Brettschneider is a professor of political science at Brown University and a visiting law professor at Fordham Law School. He is also the author of “The Oath and the Office: A Guide to the Constitution for Future Presidents.” Soledad O’Brien talks with him about the role of the presidential oath in defending democracy. 



Related Videos