The sixth Democratic debate is on Thursday, December 19, and will have just seven 2020 Democratic presidential candidates on stage — a reduction from the previous five debate nights. This will be the final Democratic debate of 2019, with six more primary debates scheduled for 2020 (and all by the end of April).

While the entire field of candidates is still quite large, the next debate features an even smaller stage as the Democratic National Committee (DNC), which runs the debates, has continued to escalate the thresholds for qualifying criteria in polling and fundraising. While there have been some campaign dropouts since the last debate, less than half of the active candidates will appear on the December debate stage.

Who’ll be there? Who didn’t make the cut? When does it start and what channel is it on? We’ve got the answers to all your essential Democratic debate questions below.

Who qualified for the next Democratic debate?

The following 2020 Democratic presidential candidates are expected to officially qualify for the December debate, according to NPR:

Joe Biden , former vice president

, former vice president Bernie Sanders , Vermont senator

, Vermont senator Elizabeth Warren , Massachusetts senator

, Massachusetts senator Pete Buttigieg , South Bend, Indiana mayor

, South Bend, Indiana mayor Andrew Yang , entrepreneur

, entrepreneur Amy Klobuchar , Minnesota senator

, Minnesota senator Tom Steyer, billionaire activist

Senator Kamala Harris (D-CA) also reportedly qualified for the debate, but Harris ended her campaign earlier in December, citing financial challenges. Yang, the only candidate who is a person of color on stage, qualified on December 9, ahead of the December 12 deadline.

What's this labor dispute at the venue for the Democratic debate?

Notably, all seven candidates — Warren, Sanders, Yang, Biden, Buttigieg, Klobuchar, and Steyer — said on Twitter on Friday, December 13, that they would skip the debate if it meant crossing a picket line. As explained by Politico, a union named UNITE HERE 11 started picketing on campus recently after months of contract negotiations with a company contracted by the university.

DNC communication's director Xochitl Hinojosa responded in a statement, saying, "While LMU is not a party to the negotiations between Sodexo and Unite Here Local 11, [DNC chair] Tom Perez would absolutely not cross a picket line and would never expect our candidates to either. We are working with all stakeholders to find an acceptable resolution that meets their needs and is consistent with our values and will enable us to proceed as scheduled with next week's debate."

The labor dispute was resolved on Tuesday, December 17, according to The New York Times. Perez was reportedly instrumental in fostering an agreement between the university, the food service company Sodexo, and union leaders.

Who didn’t qualify for the next Democratic debate?

The following 2020 Democratic presidential candidates did not qualify for the December debate, according to The New York Times: