Super Tuesday Voters 2020

Frank Salazar, 70, shows an 'I voted' sticker after casting his ballot on the Super Tuesday, at a voting center in Alhambra, Calif., March 3, 2020.

A woman runs on a path by a polling place during primary elections, March 3, 2020, in San Diego.

California Gov. Gavin Newsom looks over the ballot of his wife, First Partner Jennifer Siebel Newsom, as they vote on Super Tuesday in Sacramento, Calif., March 3, 2020.

A voter casts a ballot at the Flushing Volunteer Fire Department in Flushing, Ohio, March 6, 2012.

Mary Schwann, 68, looks over voting material as she casts her ballot at on the Super Tuesday, at a voting center in El Segundo, Calif., March 3, 2020.

Eddie Craig Monarch reviews his ballot while his dog Sherlock waits at a polling place on Super Tuesday in Oklahoma City, Oklahoma, March 3, 2020.

A woman walks her dog past a long line of voters waiting to cast their ballot in the presidential primary at the Buena Vista Branch Library in Burbank, California on Super Tuesday, March 3, 2020.

A young supporter watches as Democratic U.S. presidential candidate Senator Elizabeth Warren speaks at her Super Tuesday night rally in Detroit, Michigan, March 3, 2020.

Supporters of Democratic presidential candidate former New York City Mayor Mike Bloomberg attend a primary election night campaign rally in West Palm Beach, Fla., March 3, 2020.

Democratic U.S. presidential candidate and former U.S. Vice President Joe Biden talks to reporters after ordering ice cream at La Michoacana during the state's Super Tuesday Democratic presidential primary election in Los Angeles, March 3, 2020.

Supporters of Democratic U.S. presidential candidate Senator Bernie Sanders cheer for early results at his Super Tuesday night rally in Essex Junction, Vermont, March 3, 2020.

People wait to vote on Super Tuesday in the gymnasium at Cleveland Park Community Center in Nashville, Tenn., March 3, 2020.