From left, Democratic presidential candidates businessman Tom Steyer, Sen. Elizabeth Warren, D-Mass., former Vice President Joe Biden, Sen. Bernie Sanders, I-Vt., former South Bend Mayor Pete Buttigieg, and Sen. Amy Klobuchar, D-Minn., stand on stage, Tuesday, Jan. 14, 2020, before a Democratic presidential primary debate hosted by CNN and the Des Moines Register in Des Moines, Iowa. (AP Photo/Charlie Neibergall) Amy Klobuchar,Pete Buttigieg,Bernie Sanders,Joe Biden,Elizabeth Warren,Tom Steyer
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