Ten Democrats running for president are likely to have qualified for the primary debate next month after the Democratic National Committee’s (DNC) deadline to meet its criteria passed on Wednesday night.

That is half of the 20 Democrats who took part in the two previous debates after the DNC doubled the thresholds to make the stage. It will likely mean the debate will take over only one night, on Sept. 12.

The previous two debates in June and July were spread over a total of four nights, as the DNC has capped the maximum number of candidates who can debate at once at 10.

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For the September debate, the DNC required each candidate to reach 130,000 unique donors and at least 2 percent support in four DNC-approved polls to qualify.

Ten candidates have met those requirements: Former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE; Sen. Bernie Sanders Bernie SandersSirota reacts to report of harassment, doxing by Harris supporters Republicans not immune to the malady that hobbled Democrats The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election MORE (I-Vt.); Sen. Elizabeth Warren Elizabeth WarrenOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds On The Money: Half of states deplete funds for Trump's 0 unemployment expansion | EU appealing ruling in Apple tax case | House Democrats include more aid for airlines in coronavirus package Warren, Khanna request IG investigation into Pentagon's use of coronavirus funds MORE (D-Mass.); Sen. Kamala Harris Kamala HarrisTexas Democratic official urges Biden to visit state: 'I thought he had his own plane' The Hill's Campaign Report: Biden on Trump: 'He'll leave' l GOP laywers brush off Trump's election remarks l Obama's endorsements A game theorist's advice to President Trump on filling the Supreme Court seat MORE (D-Calif.); South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegBillionaire who donated to Trump in 2016 donates to Biden The Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November Buttigieg stands in as Pence for Harris's debate practice MORE; Sen. Cory Booker Cory Anthony BookerThe movement to reform animal agriculture has reached a tipping point Watchdog confirms State Dept. canceled award for journalist who criticized Trump 3 reasons why Biden is misreading the politics of court packing MORE (D-N.J.); Sen. Amy Klobuchar Amy Klobuchar3 reasons why Biden is misreading the politics of court packing Social media platforms put muscle into National Voter Registration Day Battle lines drawn on precedent in Supreme Court fight MORE (D-Minn.); former Rep. Beto O’Rourke (D-Texas); former tech executive Andrew Yang Andrew YangBiden's latest small business outreach is just ... awful Doctor who allegedly assaulted Evelyn Yang arrested on federal charges The Hill's Campaign Report: Biden weighs in on police shootings | Who's moderating the debates | Trump trails in post-convention polls MORE; and former Housing and Urban Development Secretary Julián Castro.

The 10 remaining candidates in the Democratic field appear likely to have failed to make the stage: billionaire hedge fund executive Tom Steyer Tom SteyerTV ads favored Biden 2-1 in past month Inslee calls Biden climate plan 'perfect for the moment' OVERNIGHT ENERGY: Trump administration finalizes plan to open up Alaska wildlife refuge to drilling | California finalizes fuel efficiency deal with five automakers, undercutting Trump | Democrats use vulnerable GOP senators to get rare win on environment MORE; Rep. Tulsi Gabbard Tulsi GabbardRepublicans call on DOJ to investigate Netflix over 'Cuties' film Hispanic Caucus campaign arm endorses slate of non-Hispanic candidates Gabbard says she 'was not invited to participate in any way' in Democratic convention MORE (D-Hawaii); Sen. Michael Bennet Michael Farrand BennetOVERNIGHT ENERGY: House Democrats tee up vote on climate-focused energy bill next week | EPA reappoints controversial leader to air quality advisory committee | Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' Senate Democrats demand White House fire controversial head of public lands agency Next crisis, keep people working and give them raises MORE (D-Colo.); Montana Gov. Steve Bullock Steve BullockCourt removes Pendley from role as public lands chief On The Trail: Making sense of this week's polling tsunami McConnell locks down key GOP votes in Supreme Court fight MORE; Rep. Tim Ryan Timothy (Tim) RyanNow's the time to make 'Social Emotional Learning' a national priority Mourners gather outside Supreme Court after passing of Ruth Bader Ginsburg Lincoln Project hits Trump for criticizing Goodyear, 'an American company' MORE (D-Ohio); former Rep. John Delaney John DelaneyCoronavirus Report: The Hill's Steve Clemons interviews Rep. Rodney Davis Eurasia Group founder Ian Bremmer says Trump right on China but wrong on WHO; CDC issues new guidance for large gatherings The Hill's Coronavirus Report: Kansas City Mayor Quinton Lucas says country needs to rethink what 'policing' means; US cases surpass 2 million with no end to pandemic in sight MORE (D-Md.); New York City Mayor Bill de Blasio Bill de BlasioOVERNIGHT ENERGY: California seeks to sell only electric cars by 2035 | EPA threatens to close New York City office after Trump threats to 'anarchist' cities | House energy package sparks criticism from left and right EPA threatens to close New York City office after Trump threats to 'anarchist' cities New Year's Eve in Times Square to be largely virtual amid pandemic MORE; bestselling author Marianne Williamson Marianne WilliamsonMarianne Williamson discusses speaking at People's Party Convention Fewer people watched opening night of Democratic convention compared to 2016 Marianne Williamson: Democratic convention 'like binge watching a Marriott commercial' MORE; former Rep. Joe Sestak (D-Pa.); and Miramar, Fla., Mayor Wayne Messam Wayne Martin MessamKey moments in the 2020 Democratic presidential race so far Wayne Messam suspends Democratic presidential campaign 2020 primary debate guide: Everything you need to know ahead of the November forum MORE.

The DNC will make a final determination on which candidates make the stage after a certification process.

Candidates who fell short for the September event could still qualify for the October debate, which will have the same criteria.

The qualifying window for both events opened on June 28, but a DNC memo sent to the campaigns earlier this month said that the deadline to qualify for the October debate will be two weeks before it begins.

That would give candidates more time to make the October stage, joining the 10 candidates who will appear in September, who will also qualify for the following debate.

Of the 10 candidates who are likely not to make the stage in September, Steyer is the closest to qualifying, needing only one more survey that meets the DNC threshold after meeting the donor criteria. Steyer has yet to make any of the debates after launching his presidential campaign shortly before the July debate.

Gabbard, who has also met the donor requirement, needs two more surveys. The Hawaii congresswoman made the stage in the previous two debates.

But missing out on the September debate could make it even harder to climb in the polls or attract new donors given that it will deprive candidates of a critical platform to pitch themselves to voters and an opportunity to distinguish themselves in a crowded primary field.

Harris, for example, shot up in the polls after she confronted Biden in June over his past opposition to school busing, while Booker saw his best day of fundraising of the 2020 cycle the day after the July debate.

Sen. Kirsten Gillibrand Kirsten GillibrandSunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Suburban moms are going to decide the 2020 election Jon Stewart urges Congress to help veterans exposed to burn pits MORE (D-N.Y.) dropped out of the race just hours before the qualification deadline after failing to make much headway in the crowded field.

Some of the candidates who were on the verge of failing to make the cut have grumbled that the DNC’s requirements are too stringent or that the decisionmaking process behind them lacked transparency.

In a statement on Wednesday, hours before the deadline, Steyer's campaign sent a statement calling on the DNC to expand its "polling criteria in the future to include more early state qualifying polling."

Meanwhile, Gabbard’s campaign hammered the body last week over its process for selecting which pollsters will count toward the qualifying criteria.