Donald Trump's lawyers sent a private 20-page letter to the special counsel Robert Mueller to assert that he can not be forced to testify in the investigation into Russian meddling in the 2016 election, according to a report.
"One of the defenses that Rudy Giuliani has been talking about with the president himself is that complying with the Mueller investigation would take an enormous amount of the president's time", he said.
Mueller is investigating whether Trump associates coordinated with Russian Federation during the 2016 presidential election and whether Trump took steps to shut down that investigation through actions including the firing of FBI Director James Comey.
In fact, his lawyers assert in a memo to special counsel Robert Mueller, it's impossible for him to have done anything wrong in the area of obstructing justice, an issue Mueller has been investigating. "I would do it under oath".
The letter, which was not independently verified by CNBC, was authored by John Dowd and Jay Sekulow, lawyers that have since departed Trump's legal team.
President Donald Trump's lawyers have made a bold assertion of presidential power.
Giuliani said last month that he wanted any interview of Trump to be limited in scope and length, suggesting it to be only 2-1/2 hours and not under oath.
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Giuliani did not immediately respond to a request for comment.
Trump also said he was considering pardoning lifestyle maven Martha Stewart and commuting the prison sentence of former Illinois Governor Rod Blagojevich, convicted of corruption charges.
A source with knowledge of the investigation told Fox News the letter was meant to "push back" on Mueller's request for an interview, "to make him work" to prove that he is lacking information about the case that can only be gleaned from an interview with the president.
"The Office of the President is not a get-out-of-jail free card for lawless behavior", the lawyers wrote.
The letter laid out in detail arguments as to why the president could not have obstructed justice.
A Trump decision to terminate the investigation "could lead to impeachment", Mr Giuliani separately told the NBC News program Meet the Press with Chuck Todd. Mueller has requested an interview with the president to determine whether he had criminal intent to obstruct the investigation into his associates' possible links to Russia's election interference.
Manafort, who was Trump's campaign chairman, faces charges of acting as an unregistered foreign agent and money-laundering conspiracy and also two false-statement charges related to information he shared with the Justice Department about his Ukrainian political work.
The attorneys reminded Mueller that the White House could have claimed "executive privilege" over the documents, but that "the president's desire for transparency exceeded the policy purposes for the privilege under the circumstances".