Democratic candidates in final debate before Iowa caucuses

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

(L-R) Democratic presidential hopefuls billionaire-philanthropist Tom Steyer, Massachusetts Senator Elizabeth Warren, Former Vice President Joe Biden, Vermont Senator Bernie Sanders, Mayor of South Bend, Indiana, Pete Buttigieg and Minnesota Senator Amy Klobuchar stand on stage ahead of the seventh Democratic primary debate of the 2020 presidential campaign season co-hosted by CNN and the Des Moines Register at the Drake University campus in Des Moines, Iowa on January 14, 2020. (Photo by kerem yucel / AFP) (Photo by KEREM YUCEL/AFP via Getty Images) ** OUTS - ELSENT, FPG, CM - OUTS * NM, PH, VA if sourced by CT, LA or MoD **

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)

Jan. 14, 2020 9:13 PM PT

Elizabeth, Warren, Bernie Sanders, Joe Biden

Elizabeth Warren greets Bernie Sanders. (Robyn Beck/AFP)

Democratic Presidential Candidates

Tom Steyer, Elizabeth Warren, Bernie Sanders and Pete Buttigieg listen to Joe Biden. (Getty Images)

Joe Biden, Bernie Sanders

Joe Biden and Bernie Sanders. (Scott Olson/Getty Images)

Elizabeth Warren, Joe Biden, Bernie Sanders

Elizabeth Warren, Joe Biden and Bernie Sanders. (Robyn Beck/AFP)

Tom Steyer, Elizabeth Warren

Tom Steyer and Elizabeth Warren. (Robyn Beck/AFP)

Elizabeth Warren, Joe Biden

Elizabeth Warren and Joe Biden. (Scott Olson/Getty Images)

Joe Biden, Bernie Sanders

Joe Biden and Bernie Sanders. (Robyn Beck/AFP)

Spin Room

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.

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.

Democratic presidential hopefuls at the seventh Democratic primary debate of the 2020 campaign season.
(Robyn Beck/AFP via Getty Images)

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