Several candidates are already meeting the requirements to take part in the third set of debates in September in Houston.

In the third round of debates, candidates will need to both reach 2% in four polls and acquire donations from 130,000 unique donors, much tougher thresholds to meet than earlier debates. For the first two rounds, candidates needed to only poll at 1% and acquire 65,000 donors. ABC and Univision are hosting the debate at Texas Southern University on Sept. 12 and 13.

So far, as of August 8, the following candidates have met both requirements to be on stage in September:

Former Vice President Joe Biden

New Jersey Sen. Cory Booker

South Bend, Indiana Mayor Pete Buttigieg

Former HUD Secretary Julian Castro

California Sen. Kamala Harris

Minnesota Sen. Amy Klobuchar

Former Texas Rep. Beto O'Rourke

Vermont Sen. Bernie Sanders

Massachusetts Sen. Elizabeth Warren

Andrew Yang, businessman

Others have reached one of the two requirements. Rep. Tulsi Gabbard, Washington Gov. Jay Inslee and billionaire Tom Steyer have met the donor threshold but not the polling threshold.

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The second Democratic debate took place in Detroit in July.

This report will be updated as other candidates qualify.

Sarah Ewall-Wice contributed to this report.