The host committee charged with raising $64 million to put on the festivities around next week's Republican National Convention in Cleveland confirmed that it asked billionaires Sheldon and Miriam Adelson for a last-minute infusion of $6 million to make up a fundraising gap.

In a statement released Friday afternoon, David Gilbert, chief executive of the Cleveland 2016 Host Committee, said that the committee staff sent a letter to the casino magnate and his wife detailing their fundraising needs, as first reported Thursday by Politico. The letter blamed the funding shortfall on controversy surrounding putative GOP nominee Donald Trump. “Over the past couple months, negative publicity around our potential nominee resulted in a considerable number of pledges backing out from their commitments,” the letter said, according to Politico. Among those who backed out of donations, according to the letter, were billionaire David Koch, FedEx, Visa, Pepsi and Coca-Cola.

But Gilbert said the letter overstated how many pledges had been withdrawn. While the missive bore his signature and those of the committee's co-chairs, he said it was not reviewed or authorized by the co-chairs. "It mischaracterized certain donations from individuals and corporations," he said in his statement. "Some of what were referred to as pledges were actually expectations based on pledges made to previous conventions, while a handful had been withdrawn from the host committee for 2016 Republican National Convention."

"The host committee has contacted the Adelsons’ staff to apologize for the inaccuracy," Gilbert stated. "The efforts to raise funds for the RNC are ongoing."

A spokeswoman for the host committee did not respond to a question about whether the Adelsons have committed any funds. Advisers to the Adelsons did not respond to requests for comment.

Despite a campaign to pressure corporations to drop their sponsorship of the RNC, Gilbert maintained that the committee's fundraising has been "highly successful," saying it has raised more money than the past two RNC host committees and at a faster pace. To date, the committee has brought in $58.25 million, he said.

Tom Hamburger contributed to this report.