The president and his advisers have also discussed removing Michael Atkinson, the inspector general of the intelligence community, though no final decision has been made, officials said. Trump has expressed frustration that Atkinson allowed a whistleblower report documenting Trump’s alleged misconduct toward Ukraine to be transmitted to Congress.

Some advisers have also counseled the president to remove Victoria Coates, the deputy national security adviser, who has told others in the White House that she fears her job is in jeopardy.

Trump has regularly asked aides to continue slashing the size of the NSC, and national security adviser Robert C. O’Brien has said he plans to do so, telling NPR in an interview last month that the policy staff, which he put at about 180 people when he took over in September, was bloated.

By the end of February, O’Brien said, he hoped to have cut it by a third. A senior administration official said there will be widespread departures at the NSC in the next week.