The Republican National Committee on Friday laid out its standards for candidates to qualify for the primary Republican presidential main debate, establishing a key fund-raising threshold and requiring candidates to pledge to assist the eventual occasion nominee.

The standards for the talk, scheduled for Aug. 23 in Milwaukee, come because the Republican presidential main subject grows more crowded, with a number of contenders anticipated to hitch the race within the coming days and weeks. A second debate may very well be held on Aug. 24 if sufficient candidates qualify, the R.N.C. mentioned in an announcement.

To qualify for the stage, candidates should garner assist of at the least 1 % in a number of nationwide polls acknowledged by the committee, and a few polling from the early-voting states will rely as nicely. The candidates should even have a minimal of 40,000 distinctive donors to their marketing campaign, with at the least 200 distinctive donors per state or territory, in 20 states and territories, in response to the committee.

The 40,000-donor debate threshold is more likely to show a consequential and expensive barrier to some underfunded candidates. Republican campaigns had already been advised informally concerning the standards, and a few had been racing to make sure that they had sufficient donors. Some tremendous PACs are spending cash for on-line adverts to drive small donations to the campaigns.

In 2020, even some well-known Democratic candidates struggled to realize the 65,000-donor threshold that the Democratic Party had set for early debates and diverted cash to operating adverts on-line to seek out contributors. The 40,000 minimal might show a problem for lesser-known Republicans and people who have but to start their campaigns.

Former Gov. Asa Hutchinson of Arkansas, who has struggled to gain traction within the polls, insisted that he supposed to make the talk stage in an announcement on Friday, at the same time as he expressed a spread of issues concerning the standards.

“The 40,000 donor threshold will keep some candidates from being on the debate stage and benefits candidates who generate online donations through extreme rhetoric and scare tactics,” he mentioned within the assertion. “It also deprives the voters in Iowa and other early states of an opportunity to evaluate the entire field of candidates.”

And Larry Elder, a conservative commentator who additionally faces an uphill battle within the presidential race, mentioned in an interview that whereas he anticipated to satisfy the polling threshold, the 40,000-donor rule was “onerous.”

“It’s hard to get 40,000 individual donors,” Mr. Elder mentioned, declining to specify what number of donors he had thus far. “We’re working hard. I’ve got a professional team to do it, but I think it’s hard, and I know that other campaigns have complained about it as well.”

Still, some campaigns — and would-be campaigns — had been fast to sound notes of confidence on Friday afternoon.

“Looking forward to being there!” mentioned Nachama Soloveichik, a spokeswoman for Nikki Haley, the previous United Nations ambassador and former governor of South Carolina.

Former Vice President Mike Pence is expected to quickly soar into the race as nicely, and his crew hit an analogous theme.

“There isn’t a better communicator in the Republican Party than Mike Pence, so we are looking forward to being on stage,” mentioned Devin O’Malley, an adviser to Mr. Pence.

And Tricia McLaughlin, a senior adviser to Vivek Ramaswamy, the entrepreneur, writer and “anti-woke” activist, mentioned the marketing campaign already had “north of 43,000” particular person donors. The subsequent marketing campaign finance submitting deadline is later this summer season.

This just isn’t the primary time there have been efforts to cull the Republican debate stage members. In 2016, lower-polling candidates had been relegated to undercard debates.

The standards for the extra Republican debates for this marketing campaign cycle haven’t been introduced. One particular person briefed on the discussions mentioned there may very well be an escalation of the donor threshold for later debates, or for the polling averages required.

Two Republicans conversant in the discussions mentioned Gov. Ron DeSantis’s crew had needed a better threshold than 1 %, which might have been more likely to skinny out the stage, giving him a extra direct interplay with former President Donald J. Trump, the present Republican front-runner.

Mr. Trump, for his half, has already suggested that he might skip main debates, claiming that it was not price his time to debate his rivals due to his polling benefit.

Candidates hoping to debate within the August matchup are additionally anticipated to vow to not take part in any debate not accredited by the occasion committee for the remainder of the election cycle, and to pledge to assist the eventual Republican nominee.

“I have always supported the party nominee, but I have never supported a party loyalty oath,” mentioned Mr. Hutchinson, who has been critical of Mr. Trump. “The pledge should simply be that you will not run as a third party candidate.”

Those who make it onstage shall be grouped in response to polling, with the highest-polling candidate within the middle, the committee mentioned.

Fox News is slated to host the primary debate in Milwaukee.

Shane Goldmacher, Maggie Haberman and Reid J. Epstein contributed reporting.