The Democratic National Committee announced Friday that the next Democratic presidential debate will only be held on October 15. 

The debate will air live at 8 p.m. ET from the Rike Center. 

Twelve candidates are expected to participate in the debate: former Vice President Joe Biden; New Jersey Sen. Cory Booker; South Bend, Indiana, Mayor Pete Buttigieg; former Housing and Urban Development Secretary Julián Castro; Hawaii Rep. Tulsi Gabbard; California Sen. Kamala Harris; Minnesota Sen. Amy Klobuchar; former Texas Rep. Beto O'Rourke; Vermont Sen. Bernie Sanders; businessman Tom Steyer; Massachusetts Sen. Elizabeth Warren; and businessman Andrew Yang