Democratic candidates debate in Florida to kick off the 2020 election

Protestors gather outside of the Adrienne Arsht Center for the Performing Arts, where Democratic presidential candidates are going to debate for the first time in Miami on June 26, 2019.

Democratic National Committee chairman Tom Perez speaks on the first night of the Democratic presidential debate on June 26, 2019, in Miami.

Former Rep. John Delaney, D- Md. arrives to participate the first Democratic primary debate in Miami on June 26, 2019.

Democratic presidential candidates take part in the first night of the Democratic presidential debate on June 26, 2019 in Miami.

Democratic presidential primary candidates, former Secretary of Housing and Urban Development Julian Castro, left, Sen. Cory Booker, D-N.J., and Sen. Elizabeth Warren, D-Mass., enter the debate stage on June 26, 2019, at the Adrienne Arsht Center for the Performing Arts in Miami.

Mayor of New York City Bill de Blasio, Rep. Tim Ryan, D-Ohio, Former Secretary of Housing and Urban Development Julian Castro and Sen. Cory Booker, D- N.J., participate in the first Democratic primary debate in Miami on June 26, 2019.

Sen. Amy Klobuchar, D-Minn,, speaks during the first Democratic primary debate in Miami on June 26, 2019.

Sen. Cory Booker D-N.J. and Sen. Elizabeth Warren, D-Mass., speak ahead of the first Democratic primary debate in Miami, on June 26, 2019.

Mayor of New York City Bill de Blasio participates in the first Democratic primary debate in Miami on June 26, 2019.

Democratic presidential candidates take part in the first night of the Democratic presidential debate on June 26, 2019 in Miami.

Rep. Tulsi Gabbard, D-Hawaii, speaks during the first Democratic primary debate in Miami on June 26, 2019.

Former Rep. John Delaney, D-Md., speaks during the first Democratic primary debate in Miami on June 26, 2019.

Democratic presidential candidates take part in the first night of the Democratic presidential debate on June 26, 2019 in Miami.

Rep. Tim Ryan, D-Ohio, speaks during the first Democratic primary debate in Miami on June 26, 2019.

Governor of Washington Jay Inslee speaks during the first Democratic primary debate in Miami on June 26, 2019.

Former Secretary of Housing and Urban Development Julian Castro speaks during the first Democratic primary debate in Miami on June 26, 2019.

Sen. Cory Booker, D-N.J., gestures as he arrives to participate in the first Democratic primary debate in Miami, on June 26, 2019.

Sen. Elizabeth Warren, D-Mass., arrives to participate in the first Democratic primary debate in Miami on June 26, 2019.

Moderators Chuck Todd and Rachel Maddow speak to audience during a technical problem as they host the first night of the Democratic presidential primary debate in Miami on June 26, 2019.

Former Rep. Beto O'Rourke, D-Texas, participates in the first Democratic primary debate in Miami on June 26, 2019.

Former housing secretary Julian Castro, Sen. Cory Booker, D-N.J., and Sen. Elizabeth Warren, D-Mass., talk during the first night of the Democratic presidential debate in Miami on June 26, 2019.

Rep. Tim Ryan, D-Ohio, takes questions following the debate on June 26, 2019, in Miami.

Former Secretary of Housing and Urban Development Julian Castro takes questions following the debate on June 26, 2019, in Miami.

Sen. Elizabeth Warren, D-Mass., is interviewed by MSNBC's Chris Matthews following the debate on June 26, 2019, in Miami.

Rep. Tulsi Gabbard, D-Hawaii, takes questions following the debate on June 26, 2019, in Miami.

Former Rep. John Delaney, D- Md. takes questions following the debate on June 26, 2019, in Miami.

Former Rep. Beto O'Rourke, D-Texas, is interviewed by MSNBC's Chris Matthews following the debate Wednesday, June 26, 2019, in Miami.

Alex Gonzalez, left, and Rod Owens, center, eat a free "Biden berry" ice cream from Gio Marquez and Chris Willis, right, ahead of the second night of the Democratic presidential primary debates on June 27, 2019, outside of the Adrienne Arsht Center for the Performing Arts in Miami.

Gio Marquez, right, and Chris Willis prepare the Miss Froztee ice cream truck to give out free "Biden berry" ice cream in support of former Vice President Joe Biden ahead of the second night of the Democratic presidential primary debates on June 27, 2019, outside of the Adrienne Arsht Center for the Performing Arts in Miami.

Chaunce O'Connor, left, and Xavier Presley, share their opinions on the corner of Northeast 13th Street and Biscayne Boulevard ahead of the second night of the Democratic presidential primary debates on June 27, 2019, outside of the Adrienne Arsht Center for the Performing Arts in Miami.

People support their candidates ahead of the second night of the Democratic presidential primary debates on June 27, 2019, outside of the Adrienne Arsht Center for the Performing Arts in Miami.

Democratic presidential primary candidates Andrew Yang, left, Mayor Pete Buttigieg, former Vice President Joe Biden and Sen. Bernie Sanders, I-Vt., enter the debate stage in Miami on June 27, 2019.

Former Vice President Joe Biden, left, and Sen. Bernie Sanders greet the audience from the debate stage in Miami on June 27, 2019.

The group of Democratic presidential primary candidates greet the audience from the debate stage in Miami on June 27, 2019.

Sen. Kamala Harris, D-Calif., greets the audience from the debate stage in Miami on June 27, 2019.

Sen. Kirsten Gillibrand, D-N.Y., and Sen. Michael Bennet, D-Colo., greet the audience from the debate stage in Miami on June 27, 2019.

Mayor Pete Buttigieg greets the audience from the debate stage in Miami on June 27, 2019.

Democratic presidential hopefuls participate in the second Democratic primary debate in Miami on June 27, 2019.

Former Vice President Joseph R. Biden, Sen. Bernie Sanders I-Vt., and Sen. Kamala Harris, D-Calif., arrive to participate in the second Democratic primary debate in Miami on June 27, 2019.

Democratic presidential hopefuls participate in the second Democratic primary debate in Miami on June 27, 2019.

Former Vice President Joe Biden and Sen. Bernie Sanders (I-VT) take the stage for the second night of the first Democratic presidential debate in Miami, on June 27, 2019.

Sen. Bernie Sanders, I-Vt., and Sen. Kamala Harris, D-Calif., arrive for the second Democratic primary debate in Miami on June 27, 2019.

Entrepreneur Andrew Yang, South Bend, Indiana Mayor Pete Buttigieg, former Vice President Joe Biden and Sen. Bernie Sanders, I-Vt., take the stage for the second night of the first Democratic presidential debate in Miami on June 27, 2019.

Former Vice President Joseph Biden, right, and Mayor of South Bend, Indiana Pete Buttigieg talk before the second Democratic primary debate in Miami on June 27, 2019.

Sen. Bernie Sanders, I-Vt., speaks during the second Democratic primary debate in Miami on June 27, 2019.

Former Vice President Joseph Biden speaks during the second Democratic primary debate in Miami on June 27, 2019.

Sen. Kamala Harris, D-Calif., speaks during the second Democratic primary debate in Miami on June 27, 2019.

Former Governor of Colorado John Hickenlooper speaks during the second Democratic primary debate in Miami on June 27, 2019.

Sen. Kirsten Gillibrand, D-N.Y., speaks during the second Democratic primary debate in Miami on June 27, 2019.

Sen. Michael Bennet, D-Colo., speaks during the second Democratic primary debate in Miami on June 27, 2019.

Rep. Eric Swalwell, D-Calif., speaks during the second Democratic primary debate in Miami on June 27, 2019.

Entrepreneur Andrew Yang speaks during the second Democratic primary debate in Miami on June 27, 2019.

Sen. Kamala Harris, D-Calif., left, and Sen. Kirsten Gillibrand, D-N.Y., speak during the second Democratic primary debate in Miami on June 27, 2019.

Mayor of South Bend, Indiana Pete Buttigieg speaks during the second Democratic primary debate in Miami on June 27, 2019.

Author Marianne Williamson speaks during the second Democratic primary debate in Miami on June 27, 2019.

Democratic presidential hopefuls participate in the second Democratic primary debate in Miami on June 27, 2019.

Sen. Kamala Harris, D-Calif., speaks with guests after the second Democratic primary debate in Miami on June 27, 2019.