U.S. Republican presidential candidate Donald Trump spoke to members of the media before a campaign event in Atkinson, New Hampshire, Oct. 26, 2015. Trump is slated to raise money for the Republican Party for the first time. Reuters

Donald Trump, the real estate mogul who has long been the front-runner in the Republican presidential primary, will for the first time help the Republican National Committee raise money in December. The fundraiser comes after months of apparent bad blood between the committee and Trump, who burst onto the scene earlier this year and challenged the establishment with insults and criticism.

Trump will meet with donors at an event that will also feature expected future House of Representatives Speaker Paul Ryan, RNC Chairman Reince Priebus and others, Dec. 9, 2015, in New York City, Politico reported. Among the donors who might be expected to attend are some of the biggest names in Republican fundraising, like hedge fund manager Paul Singer, wrestling executive Linda McMahon and investor Ken Griffin.

The other Republican presidential candidates have also been invited to the event, the Republican party said. The GOP, however, declined to discuss fundraising details.

Donald Trump Presidential Candidate Profile | InsideGov

This isn't the first time that Trump has made moves to smooth out the relationship he has with the RNC, which has been worried about Trump's unexpected rise in the polls. The real estate mogul has been in first place nationwide for more than 100 consecutive days. Following a controversial first Republican debate showing in which Trump refused to promise to support the eventual Republican nominee -- if it is not him -- Trump met with reporters and supporters in his midtown Manhattan luxury skyscraper, known as Trump Tower, and displayed a loyalty pledge he had signed.

Trump has maintained a lead in polls for months. He is currently in first place nationally among likely Republican caucus goers, according to an aggregate of polls from Real Clear Politics. He takes in 26.8 percent of that vote, compared with 22 percent of the vote claimed by second-place retired neurosurgeon Dr. Ben Carson, who has been surging recently and was enjoying a slim lead over Trump in a national poll released Tuesday.

This story has been updated to reflect that all of the Republican presidential candidates have been invited to the Dec. 9 fundraiser in New York City.