WASHINGTON — Todd Blanche's path to confirmation as the next attorney general of the United States faced a setback Wednesday as two key Republicans pressed the Justice Department to commit in writing to kill an "anti-weaponization" fund that could give money to President Donald Trump's allies and restrict the scope of the tax audit immunity given to him and his family members.

The Senate Judiciary Committee is scheduled to hold a vote Thursday morning on whether to advance Blanche's nomination to the full Senate, but GOP Sens. John Cornyn of Texas and Thom Tillis of North Carolina, both of whom have clashed with Trump and neither of whom is facing re-election in November, have complicated Blanche's path to confirmation.

After meeting with Cornyn and Judiciary Committee Chair Chuck Grassley, R-Iowa, on Wednesday, Tillis said they were still waiting for the Justice Department to provide language on their demands before they could confirm that they'll go forward with a vote on Thursday.

Much of the pair's negotiations with the DOJ has been around the so-called "anti-weaponization" fund that was established under a purported settlement between Trump and the executive branch he controls over a lawsuit the president filed over the disclosure of his tax records. The suit led to a five-year prison sentence for a former IRS contractor.

A federal judge in Virginia indefinitely blocked the fund after a former Jan. 6 prosecutor sued. A federal judge in Florida found that Trump's IRS lawsuit was brought in "bad faith" for an "improper purpose" and ordered sanctions against several people involved, including Blanche.

But the settlement agreement also had provisions that offered Trump — along with his family members and companies — some protection from IRS audits.

Tillis said Wednesday that his demands to the Justice Department have been consistent: kill the anti-weaponization fund and narrow the settlement with Trump involving IRS audits.

"Get whoever the president's lawyers are the parties to the agreement to sign off on that, we're good to go," Tillis said.

The senator said he has been in "constant daily contact with the DOJ" and that they were "working on a draft right now." After the meeting, Tillis said it appears that the Justice Department has agreed to his terms on the anti-weaponization fund, but that he still needs clarification on who is protected against IRS audits through the legal settlement.

Cornyn, who lost his primary race to Trump-endorsed Texas Attorney General Ken Paxton, said Wednesday that it is Grassley's decision on whether the vote is held Thursday morning.

Grassley did not confirm whether the vote will take place Thursday morning, telling reporters after the meeting, "We are working on getting a solution."

The committee's website indicates the vote is scheduled for 9 a.m. ET.

Cornyn told reporters that Blanche's team had failed to provide written proposals to modify the release that was signed in the tax dispute with Trump and his organization.

"I haven't seen a single piece of writing that is responsive to what I've requested," Cornyn said.

He later said that Trump's claim that he is holding up the vote because the president didn't endorse him in the GOP primary is "a convenient excuse for not cooperating with the Judiciary Committee's appropriate role in judicial confirmations."

Blanche, who previously served as Trump's personal defense attorney, had served in the key No. 2 position at the Justice Department until Trump fired Pam Bondi as attorney general in April amid frustrations with her leadership.

After taking over as the acting attorney general, Blanche told NBC News in April that Americans should be "happy" that Trump was so involved in Justice Department matters. Less than two weeks later, the Trump administration brought a case against former FBI Director James Comey, a longtime Trump foe, over an Instagram photo of seashells.

Following the Comey indictment, Trump was said to be happy with Blanche's job performance and ultimately ended up nominating him for the job permanently. Comey's legal team argued in a court filing this week that the seashells case came about because Blanche was seeking to "please President Trump" during his "audition" for the role.

During his confirmation hearing this month, Blanche said he was not a "yes man" for Trump.

This article was originally published on NBCNews.com