Utah Senator Mike Lee (R) thinks his colleagues on the Senate Intelligence Committee will ask former FBI Director James Comey about any political pressure he may have faced on the Russian Federation investigation.
The fired FBI director agreed to disclose details regarding his conversations with the President particularly about the agency's investigation into alleged Russia's interference during the 2016 presidential elections and possible ties with the Trump campaign.
Trump allegedly asked Comey to "let go" of the investigation into Flynn and his Russian Federation ties, a meeting that Comey chronicled in a two-page memo, the New York Times reported in May.
Comey's appearance will be carried on live television.
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Burr said he's spoken several times to Comey and he expects the former Federal Bureau of Investigation director to talk in detail about his conversations with Trump when he testifies openly Thursday before the committee.
Legal experts have also said that the president likely undermined his ability to assert executive privilege by publicly discussing his dealings with Comey in tweets and interviews.
The broad boundaries, relayed by Comey to Burr and Vice Chairman Mark Warner last week, comes after Comey's discussions with Justice Department special counsel Robert Mueller, who is leading the agency's probe into the Trump campaign's ties to Russian Federation. Once it was over dinner - which Trump said Comey asked for because he wanted to keep his job, though Trump nearly immediately walked that claim back. He also admitted that he made a decision to fire Comey regardless of the recommendation from his top appointees at the Department of Justice (DOJ).
Mr Mueller, respected for his independence and thoroughness, has so far been silent about taking over the investigations.
Lawmakers in both parties have urged Trump to allow Comey to testify publicly.
A top secret National Security Agency document meanwhile shows that hackers from Russian military intelligence repeatedly tried to break into USA voting systems before last year's presidential election, The Intercept reported Monday.