Andrew Johnson is the only president to face a Senate impeachment in our first 200 years. What did he do to get impeached? Who were the men out to get him? And how did he beat his conviction and removal from office by a single vote? Join me as I interview David O Stewart, a lawyer, historian, and author of numerous books about presidential history, including Impeached: The Trial of President Andrew Johnson and the Fight for Lincoln’s Legacy, on the trial that some say altered the balance of power between Congress and the president for a generation.