President Trump and former vice president Joe Biden will meet onstage for the first of three debates on Sept. 29. Here's what to expect from their matchups. Read more: https://wapo.st/3mY4bfE. Subscribe to The Washington Post on YouTube: https://wapo.st/2QOdcqK Follow us: Twitter: https://twitter.com/washingtonpost Instagram: https://www.instagram.com/washingtonpost/ Facebook: https://www.facebook.com/washingtonpost/