"Your unprecedented actions have left the president with no choice," lawyer Pat Cipollone said in a letter to Democratic House leaders. "In order to fulfill his duties to the American people, the Constitution, the Executive Branch and all future occupants of the Office of the Presidency, President Trump and his administration cannot participate in your partisan and unconstitutional inquiry under these circumstances."
The letter came shortly after the Trump administration on Tuesday abruptly blocked a key witness in the Ukraine scandal from appearing before a congressional impeachment inquiry.
The US. State Department said the US. ambassador to the European Union, Gordon Sondland, a Trump political donor, would not be allowed to appear, even though he had already flown from Europe to do so. Trump decried the Democratic-led inquiry into whether he abused his office in the pursuit of personal political gain as a "kangaroo court."
Democratic lawmakers denounced the move, calling it an attempt to obstruct their inquiry and said they would subpoena Sondland, to compel him to submit to questions. The State Department did not respond to requests for comment on why Sondland had been blocked from speaking to lawmakers just hours before his scheduled appearance.
The move was the White House's most aggressive response yet to the inquiry, which has cast a pall over Trump's campaign to win back the White House in 2020. A whistleblower complaint about a July 25 phone call in which Trump pressed his Ukrainian counterpart, Volodymyr Zelenskiy, to investigate his political rival, former Vice President Joe Biden, prompted the inquiry.
The investigation could lead to the approval of articles of impeachment - or formal charges - against Trump in the House of Representatives. A trial on whether to remove him from office would then be held in the US. Senate. Republicans who control the Senate have shown little appetite for ousting Trump.
