 Joining us now is historian and biographer Alexis Coe. Her new book about President John F. Kennedy comes out next year. Good morning. Thanks a lot, Alexis, for being with us. I want to start at the beginning, going back all the way to the first one with Andrew Johnson. There are those acts of political violence where the motivation is political, and then there are those acts of political violence where it's a political victim, but the motivations are...