Live coverage of Speaker Pelosi’s press conference announcing the impeachment managers, then Julian Zelizer, professor of history and public affairs at Princeton University, CNN political analyst, co-host of the podcast Politics and Polls, and co-author of the forthcoming Burning Down the House: Newt Gingrich, the Fall of a Speaker, and the Rise of the New Republican Party (Penguin Press, 2020), breaks down the latest of the Senate trial, to start Tuesday.