What we learned from the 1st day of Trump's Senate impeachment trial

What did we learn from the first day of substantive proceedings in President Trump’s Senate impeachment trial? Brookings Institution’s Margaret Taylor, John Hart of Mars Hill Strategies, former Democratic Secretary of the Senate Martin Paone of Prime Policy Group and former Republican Secretary of the Senate Elizabeth Chryst of Congressional Global Strategies join Judy Woodruff to discuss. Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: Facebook: http://www.pbs.org/newshour Twitter: http://www.twitter.com/newshour Instagram: http://www.instagram.com/newshour Snapchat: @pbsnews Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe