Matt Crawford speaks with author Michael Gerhardt about his book, The Law of Presidential Impeachment: A guide for the Engaged Citizen. Michael Gerhardt is the leading scholar on the law of presidential impeachment. He is the only scholar to have addressed the entire House of Representatives on presidential impeachment and is one of only two scholars who have testified in three presidential impeachment proceedings - Bill Clinton's, Donald Trump's first and Joe Biden's. This is an interesting, nonpartisan read that we should all pick up and then discuss, especially in these fraught political times.