Flanking Sanders and Warren on the stage July 30 will be Montana Gov. Steve Bullock; Mayor Pete Buttigieg of South Bend, Indiana; former Maryland Rep. John Delaney; former Colorado Gov. John Hickenlooper; Minnesota Sen. Michael Bennet, D-Colo.; Rep. Tulsi Gabbard, D-Hawaii; and Washington Gov. Jay Inslee. Cory Booker will face off against front-runner Joe Biden, U.S. Sen. They even held the draw in tiers, replete with "potential match-ups", choosing the big four last to build suspense as to whether they'd end up in group one or group two. But it happened anyway in the first debate, June 26, when all the top-polling candidates except for Warren were drawn for the same night. Amy Klobuchar, former Texas Rep. Beto O'Rourke and businessman Andrew Yang.
Former Vice President Biden, while still leading the polls, saw his standing slip following the first debate.
The roster for the debate is nearly exactly the same as the first debate in Miami, though Montana Gov. Steve Bullock replaced U.S. Rep. Eric Swalwell, D-Calif., after he dropped out of the race.
The announcement comes one day after the Democratic National Committee announced the 20 presidential candidates who qualified the second debate.
Biden, meanwhile, was given the opportunity to debate Sen. Biden was attempting to show how he can work with opponents to get legislation passed, but his example set off a round of critiques among more left-leaning Democrats.
As of now, it's likely those higher standards would mean numerous 20 candidates on stage in Detroit won't have a place in Houston.
Delaney, Hickenlooper, Ryan, Bullock and Klobuchar are all more moderate the most candidates running for President.
For several of the long-shot candidates, the July debates are critical.
Harris owned the evening's most powerful moment, when she boldly confronted frontrunner Joe Biden on race and identity and called out his "hurtful" comments in praise of segregationist senators with whom he worked but disagreed.
Of the 1,923 big donors who raised money for former President Barack Obama and 2016 Democratic nominee Hillary Clinton, almost half have contributed to the current field of candidates.
During the "draw" special, the 20 eligible candidates were split between three tiers and then divided among the tiers.
But based on public information, it had been clear for days that Moulton, Messam, Steyer and Sestak were the four candidates likely to miss the debate stage.
Candidates had until 11 a.m. ET Wednesday to certify with the DNC that they have either achieved at least 1% support in three polls from an approved list of pollsters or received campaign contributions from 65,000 unique donors, including 200 donors each from 20 different states.