House Judiciary Chairman Jerrold Nadler (D-NY) noticed a hearing titled "The Impeachment Inquiry into President Donald J. Trump: Constitutional Grounds for Presidential Impeachment" for December 4, 2019 at 10:00am. "The New York Times reported in September that White House advisers - namely, Mr. Cipollone and Mr. Eisenberg - knew about the whistle-blower complaint in August".
The New York Times, citing two anonymous officials familiar with the matter, reported late Tuesday that "Trump had already been briefed on a whistleblower's complaint about his dealings with Ukraine when he unfroze military aid for the country".
Mr. Trump faced bipartisan pressure from Congress when he released the aid. Schiff adds that what's left is to decide whether Trump's behavior is compatible with his office and whether impeachment is warranted.
The White House did not immediately respond to request for comment. "But the specifics of when and how Mr. Trump learned of it have not previously been reported".
The transcripts released on Tuesday evening revealed that a lawyer for the White House's budget office resigned partly because of concerns overTrump's freeze on the military aid to Ukraine, according to a longtime career official from the office who had testified to Congress behind closed doors.
Mark Sandy, an official at the White House Office of Management and Budget, told the House Intelligence Committee in a private interview on 16 November that one of the officials "expressed some frustrations about not understanding the reason for the hold" before resigning in September.
The House of Representatives Judiciary Committee on December 4 is scheduled to start public hearings that will cover the historical background and history of previous impeachment efforts and involve legal experts, especially on constitutional law.
The revelation comes just days before the House judiciary committee takes over the impeachment inquiry, scheduling a hearing for next week as it pushes closer to a possible vote on charges of high crimes and misdemeanors and a congressional trial for the president in the Senate.
Adam Schiff has also said that the investigation will continue even after the publication of the report containing the case for the president's impeachment, ruling out further depositions or public hearings.
The impeachment inquiry is looking into the allegation that Trump withheld the almost $400million in U.S. military aid until Ukraine agreed to investigate the Bidens.
Mr Giuliani has said he conducted a probe "concerning 2016 Ukrainian collusion and corruption" on Mr Trump's behalf.
Republicans insist Trump did nothing wrong, which is Trump's position as well.