These are the top moments from January's Democratic debate in Iowa

11:54 AM ET Wed, 15 Jan 2020

Joe Biden, Bernie Sanders, Elizabeth Warren, Amy Klobuchar, Pete Buttigieg and Tom Steyer spent two hours at Drake University in the last debate before the first-in-the-nation Iowa caucuses. The debate came amid tension between the two chambers of Congress as a Senate trial for President Donald Trump's impeachment looms next week. Things got testy between Warren and Sanders, who are both progressives and reputed friends, as they did not shake hands after the debate.