Iowa Democrats to vote on "electability"

As voters in Iowa head to the state's caucuses on Monday, polls show a majority of Democrats have one thing on their minds: defeating President Trump in November. But just how to succeed at defeating the incumbent Republican is proving divisive. Will Iowans back a candidate who promises fundamental change – a progressive figure like Bernie Sanders of Elizabeth Warren – or one who will bring politics "back to normal" – a moderate such Joe Biden, Pete Buttigieg or Amy Klobuchar? Nicholas Thompson, the editor-in-chief of Wired, talks with candidates on the trail; Waleed Shahid, of the progressive group Justice Democrats; and Ed Rendell, the former governor of Pennsylvania, about matters of electability, practicality, and motivating people to get out and vote. Subscribe to the "CBS Sunday Morning" Channel HERE: http://bit.ly/20gXwJT Get more of "CBS Sunday Morning" HERE: http://cbsn.ws/1PlMmAz Follow "CBS Sunday Morning" on Instagram HERE: http://bit.ly/23XunIh Like "CBS Sunday Morning" on Facebook HERE: http://on.fb.me/1UUe0pY Follow "CBS Sunday Morning" on Twitter HERE: http://bit.ly/1RquoQb Follow "CBS Sunday Morning" on Google+ HERE: http://bit.ly/1O3jk4x Get the latest news and best in original reporting from CBS News delivered to your inbox. Subscribe to newsletters HERE: http://cbsn.ws/1RqHw7T Get your news on the go! Download CBS News mobile apps HERE: http://cbsn.ws/1Xb1WC8 Get new episodes of shows you love across devices the next day, stream local news live, and watch full seasons of CBS fan favorites anytime, anywhere with CBS All Access. Try it free! http://bit.ly/1OQA29B --- "CBS Sunday Morning" features stories on the arts, music, nature, entertainment, sports, history, science, Americana and highlights unique human accomplishments and achievements. Check local listings for CBS Sunday Morning broadcast times.