Student loan debt is slowing upward mobility for a whole generation. Democratic presidential candidates, like Bernie Sanders and Elizabeth Warren, are proposing revolutionary — and expensive — plans to counter the growing crisis. Read more: https://wapo.st/2NfTRBR. Subscribe to The Washington Post on YouTube: https://wapo.st/2QOdcqK Follow us: Twitter: / washingtonpost Instagram: / washingtonpost Facebook: / washingtonpost