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 team of investigators is looking into whether an adviser to the de facto leader of the United Arab Emirates (UAE) has influenced White House policymaking.

The New York Times reported Saturday that Mueller's team is looking into a Lebanese-American businessman and adviser to the Sheikh Mohammed bin Zayed al Nahyan, the crown prince of the UAE.

That businessman, George Nader, visited the White House frequently last year, according to the Times. That investigators are examining Nader's role in the White House's policymaking and asking about efforts by the Emiratis to influence the Trump administration suggests that Mueller's probe has broadened beyond Russia's election meddling.

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According to the Times, investigators have been asking witnesses about possible attempts by the Emiratis to buy influence in the White House by supporting President Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE's 2016 campaign.

The revelation that Mueller's team is looking into possible Emirati influence and the role of Nader comes after Mueller unsealed indictments against 13 Russian nationals and three Russian groups for their role in an alleged plot to interfere in the 2016 election.

Mueller also recently filed a superseding indictment against former Trump campaign manager 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 secured a guilty plea from Richard Gates, a former Trump campaign aide and associate of Manafort's.

— Updated at 9:51 p.m.