Mueller Evidence on Trump Could Be 'Beyond What Anyone on the Outside Can Imagine,' Obama White House Counsel Says

Any potentially damning information turned up by special counsel Robert Mueller and his band of investigators could go "beyond what anyone on the outside can imagine," according to a former White House counsel for President Barack Obama.

Bob Bauer, who served under Obama and is now a law professor at New York University, told Axios that investigators could have far more than major news organizations have reported ever since Mueller's appointment nearly 19 months ago.

"Investigators have the skills and resources to turn up evidence, including witness testimony, that goes beyond what anyone on the outside can imagine in the daily speculation about the Mueller probe," Bauer said.

Trump and his legal team made claims of complete cooperation with Mueller's investigators, including turning over millions of documents, and for the last eight months have negotiated a potential interview between the president and the special counsel.

Bauer's comment came as speculation increased about Mueller's next major move or announcement, just before a Justice Department guideline—not to take any significant action 60 days before an election—goes into effect.

Some legal experts said the rule was not so cut-and-dried, according to Politico. Former FBI director James Comey's decision to announce the reopening of Hillary Clinton's private email server investigation less than two weeks before the 2016 election defied the guideline.

One of the president's personal attorneys, Rudy Giuliani, said last week that Mueller could prove he was "nonpartisan" by adhering to the rule—part of a campaign by Giuliani to pressure Mueller into pursuing his investigation in a way that benefits Trump

"Just a few days before 60 day run-up to 2018 elections. If Mueller wants to show he's not partisan, then issue a report on collusion and obstruction. They will show President Trump did nothing wrong. Then we will have to admit you were fair. And we will," Guiliani tweeted August 25.

Mueller last charged 12 Russian nationals, each linked to Russia's intelligence and military agencies, for hacking the 2016 election in July, and achieved a guilty verdict over former Trump campaign chairman Paul Manafort earlier this month. Otherwise, Mueller's team has been relatively quiet for much of the summer.

Longtime Trump adviser and friend Roger Stone publicly claimed that Mueller's team was gunning for him and the president's eldest son, Donald Jr., who set up a June 2016 meeting with Russians linked to President Vladimir Putin at Trump Tower in an effort to get political dirt on Clinton.

Trump increased his attacks on Mueller's investigation as well as the FBI and Justice Department in the lead-up to the midterms. He has routinely attempted to enrage and activate his supporters by telling them that Democrats want to impeach him and undo his work in office, and by stoking fears of immigrants.

He has accused Comey, former FBI agent and Trump-Russia investigator Peter Strzok, former FBI lawyer Lisa Page and Justice Department official Bruce Ohr of bias against him. All but Ohr have either left or been fired from their posts.