US-VOTE-2020-DEMOCRATS-DEBATE-POLITICS
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Democratic candidates in final debate before Iowa caucuses

Presidential candidates field questions at the Democratic primary debate in Des Moines, Iowa

From left, Democratic presidential hopefuls billionaire-philanthropist Tom Steyer, Massachusetts Sen. Elizabeth Warren, former Vice President Joe Biden, Vermont Sen. Bernie Sanders, Mayor of South Bend, Ind., Pete Buttigieg and Minnesota Sen. Amy Klobuchar on stage ahead of the seventh Democratic primary debate. (Kerem Yucel/AFP via Getty Images)
Elizabeth Warren greets Bernie Sanders.  (Robyn Beck/AFP)
Tom Steyer, Elizabeth Warren, Bernie Sanders and Pete Buttigieg listen to Joe Biden. (Getty Images)
Joe Biden and Bernie Sanders. (Scott Olson/Getty Images)
Elizabeth Warren, Joe Biden and Bernie Sanders. (Robyn Beck/AFP)
Tom Steyer and Elizabeth Warren. (Robyn Beck/AFP)
Elizabeth Warren and Joe Biden. (Scott Olson/Getty Images)
Joe Biden and Bernie Sanders. (Robyn Beck/AFP)
Members of the media watch the debate at the Drake University campus. (AFP via Getty Images)
Elizabeth Warren greets Bernie Sanders as Joe Biden looks on.
 (Scott Olson/TNS)
Democratic presidential hopefuls at the seventh Democratic primary debate of the 2020 campaign season.
 (Robyn Beck/AFP via Getty Images)
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