Debate in the second impeachment trial of former President Donald Trump gets underway Tuesday at 1 pm local time. In this first stage, senators will present arguments on whether the Constitution permits the impeachment of a private citizen.

Republican South Carolina Sen. Lindsey Graham said, “If you believe he committed a crime, he can be prosecuted like any other citizen. Impeachment is a political process we’ve never impeached a president once they’re out of office. I think this is a very bad idea.”