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PBS News Hour
How 2020 Democrats are facing off as Iowa caucuses approach
Only three weeks remain before the Iowa caucuses kick off 2020 primary voting, and the volatile race is exposing new rifts in the Democratic field. Sens. Elizabeth Warren and Bernie Sanders seem to have abandoned a longstanding truce as they jostle with former Vice President Joe Biden and Pete Buttigieg at the top of the polls. And yet another candidate has dropped out. Lisa Desjardins reports.
