The statement comes as three of Trump's close associates, including his son, have been called to Senate committees to answer questions about alleged Russian meddling in the presidential campaign last year.
If Trump Jr agrees to appear before the judiciary committee, he would be the highest member of the president's inner circle of relatives and White House aides to testify in Congress about the Russia allegations.
Breaking with the president, Christopher Wray, the lawyer Donald Trump picked to lead the FBI declares he does not believe a special counsel investigation into possible coordination between Russia and the Trump election campaign is a "witch hunt".
Allegations of the Trump campaign's ties to Russia have cast a shadow over President Donald Trump's first five months in office.
In a flurry of weekend tweets and a prerecorded television appearance, Trump says his predecessor failed to act after the CIA informed him about Russia hacking.
Senator Susan Collins says she would support a subpoena if needed, referring to alleged recordings of Trump with former FBI director James Comey. Trump says he might talk about the issue in the "near future."
FBI Director James Comey and NSA Director Admiral Mike Rogers have been called to testify as part of a congressional committee probe into Russian interference in the US presidential election.
US President Donald Trump alleged that former President Obama wiretapped him earlier this month. The House Intelligence Committee said it wants a response ahead of a planned hearing on March 20.
The White House suggests that Russian President Vladimir Putin personally authorised cyber attacks during the November poll.
The US President-elect says he is fully in control and "knows who the finalists are" despite the dismissal of key members of his transition team.
The pro-war rhetoric of both the Republican and Democratic party candidates attracts investment in heavy-duty weaponry.
Setting aside the deep bitterness that dominated the long campaign season, Obama and Trump met to discuss the transition to the Republican's inauguration on January 20.
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