Acting attorney general Matthew Whitaker said Monday that special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE’s probe is “close to being completed.”

Whitaker told reporters at a press conference that he has been “fully briefed on the investigation.”

“I hope that we can get the report from Director Mueller as soon as possible,” he said.

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President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE and Republican allies for months have called for a conclusion to the investigation into possible collusion between the Trump campaign and Russia during the 2016 election; the president has repeatedly attacked the effort as a "witch hunt."

The comments by Whitaker come days after longtime Trump ally Roger Stone Roger Jason StoneOur Constitution is under attack by Attorney General William Barr Justice IG investigating Stone sentencing: report Romney says Trump's protest tweets 'clearly intended to further inflame racial tensions' MORE was indicted as part of Mueller's probe. The indictment alleges that Stone made false statements, engaged in witness tampering and interfered with a congressional investigation.

The indictment, unsealed on Friday, claims that Trump campaign staff were directed to ask Stone what documents WikiLeaks had in its possession that could be damaging to the Clinton campaign. WikiLeaks distributed stolen Democratic emails in the lead-up to the 2016 presidential election, which Mueller has alleged were hacked by Russian military officers.

The White House has said the charges have "nothing to do" with the president. Stone has denied the allegations and is promising to fight the indictment in court.

Mueller has indicted several Trump campaign officials in the course of his probe since he was appointed in May 2017, including former Trump campaign head Paul Manafort Paul John ManafortOur Constitution is under attack by Attorney General William Barr Bannon trial date set in alleged border wall scam Conspicuous by their absence from the Republican Convention MORE and former national security adviser Michael Flynn.

Whitaker also made his comments amid speculation over whether the public will be able to review the full contents of Mueller's report when the probe is concluded.

William Barr, Trump's nominee for attorney general, declined to commit to releasing the full report during his confirmation hearing earlier this month. He said he would have to follow Department of Justice guidelines in determining how the report is released.

Sens. Chuck Grassley Charles (Chuck) Ernest GrassleySenate Republicans face tough decision on replacing Ginsburg What Senate Republicans have said about election-year Supreme Court vacancies Biden says Ginsburg successor should be picked by candidate who wins on Nov. 3 MORE (R-Iowa) and Richard Blumenthal (D-Conn.) also dropped legislation Monday requiring that reports issued by any special counsel be publicly released.

--Updated 5:43 p.m.