Seven Democratic presidential candidates will participate in a televised debate tonight at Loyola Marymount University in Los Angeles. The debate will be co-hosted by ”PBS NewsHour” and Politico and will begin at 8 p.m. Eastern Standard Time. The candidates on stage will be Bernie Sanders, Elizabeth Warren, Joe Biden, Pete Buttigieg, Amy Klobuchar, Tom Steyer and Andrew Yang. The Democratic National Committee has come under fierce criticism for its debate criteria, which excluded prominent candidates of color Cory Booker and Julián Castro. Cory Booker and other presidential candidates have signed a letter to DNC Chair Tom Perez urging the DNC to change its qualification criteria for upcoming debates in January and February.