Photos: Democratic presidential debate in Flint, Mich.

Democratic presidential candidate Hillary Clinton speaks during the CNN Democratic Presidential Primary Debate with candidate Senator Bernie Sanders at the Whiting Auditorium at the Cultural Center Campus in Flint, Mich.

Democratic presidential candidate Senator Bernie Sanders speaks during the CNN Democratic Presidential Primary Debate with candidate Hillary Clinton at the Whiting Auditorium at the Cultural Center Campus in Flint, Mich.

Vermont Sen. Bernie Sanders, right, argues a point as Hillary Clinton listens during the Democratic presidential primary debate at the University of Michigan-Flint in Flint, Mich.

Democratic presidential candidates Hillary Clinton and Bernie Sanders stand during the national anthem before the Democratic presidential primary debate in Flint, Mich.

Democratic presidential candidate Hillary Clinton makes a point during the debate.

Democratic presidential candidates Hillary Clinton, left, and Sen. Bernie Sanders take the stage.

Democratic presidential candidates Hillary Clinton and Sen. Bernie Sanders stand on stage during the national anthem.

FLINT, MI - MARCH 06: Democratic presidential candidate Senator Bernie Sanders (D-VT) speaks during the CNN Democratic Presidential Primary Debate with candidate Hillary Clinton at the Whiting Auditorium at the Cultural Center Campus on March 6, 2016 in Flint, Michigan. Voters in Michigan will go to the polls March 8 for the state’s primary. (Photo by Scott Olson/Getty Images) ** OUTS - ELSENT, FPG, CM - OUTS * NM, PH, VA if sourced by CT, LA or MoD **  (Scott Olson / Getty Images)