Democratic presidential primary debate hosted by CNN/New York Times

From left, Rep. Tulsi Gabbard, D-Hawaii, businessman Tom Steyer, Sen. Cory Booker, D-N.J., Sen. Kamala Harris, D-Calif., Sen. Bernie Sanders, I-Vt., former Vice President Joe Biden, Sen. Elizabeth Warren, D-Mass., South Bend Mayor Pete Buttigieg, entrepreneur Andrew Yang, former Texas Rep. Beto O'Rourke, Sen. Amy Klobuchar, D-Minn., and former Housing Secretary Julian Castro participate in a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

From left, Rep. Tulsi Gabbard, D-Hawaii, businessman Tom Steyer, Sen. Cory Booker, D-N.J., Sen. Kamala Harris, D-Calif., Sen. Bernie Sanders, I-Vt., former Vice President Joe Biden, Sen. Elizabeth Warren, D-Mass., South Bend Mayor Pete Buttigieg, entrepreneur Andrew Yang, former Texas Rep. Beto O'Rourke, Sen. Amy Klobuchar, D-Minn., and former Housing Secretary Julian Castro participate in a Democratic presidential primary debate hosted by CNN and The New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

Democratic presidential candidate former Vice President Joe Biden takes a photo following a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

Democratic presidential candidate former Vice President Joe Biden, left, Sen. Elizabeth Warren, D-Mass., and South Bend Mayor Pete Buttigieg, right, participate in a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

Democratic presidential candidate Sen. Kamala Harris, D-Calif., left, Sen. Bernie Sanders, I-Vt., talk following a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

Democratic presidential candidate Sen. Kamala Harris, D-Calif., left, Sen. Bernie Sanders, I-Vt., middle, and former Vice President Joe Biden talk following a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

Democratic presidential candidate Sen. Bernie Sanders, I-Vt., left, listens as former Vice President Joe Biden speaks during a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

Democratic presidential candidate former Vice President Joe Biden speaks during a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

Democratic presidential candidate former Vice President Joe Biden speaks during a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

Democratic presidential candidate former Vice President Joe Biden, left, talks with Sen. Elizabeth Warren, D-Mass., during a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

Democratic presidential candidate Rep. Tulsi Gabbard, D-Hawaii, businessman Tom Steyer, center, and Sen. Cory Booker, D-N.J., right, participate in a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

Democratic presidential candidate Rep. Tulsi Gabbard, D-Hawaii, listens during a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

Democratic presidential candidate U.S. Rep. Tulsi Gabbard, D-Hawaii, left, and businessman Tom Steyer participate in a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

Democratic presidential candidate entrepreneur Andrew Yang, left, former Texas Rep. Beto O'Rourke, center, and Sen. Amy Klobuchar, D-Minn., participate in a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

Democratic presidential candidate Sen. Cory Booker, D-N.J., and Sen. Kamala Harris, D-Calif., right, participate in a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.

Democratic presidential candidate Rep. Tulsi Gabbard, D-Hawaii, left, businessman Tom Steyer and Sen. Cory Booker, D-N.J., right, participate in a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, in Westerville, Ohio.