“We won the Mueller probe,” Mr. Sekulow said on his afternoon radio show on Monday. “I tell you what. If Mueller was a war, this is a skirmish.”

But on Wednesday night, one White House official was anticipating changes with some staff members focused on the inquiry.

Other aides privately conceded that they did not know how the politics of the impeachment process would play out, and would like to see the White House Counsel’s Office bring back someone like Emmet T. Flood, the White House lawyer who oversaw the administration’s response to the special counsel’s investigation and worked on President Bill Clinton’s legal team during his impeachment…

“Starting to encounter Republicans who wonder if maybe the President should step aside for Pence,” Erick Erickson, the conservative blogger and radio host, wrote on Twitter on Tuesday. “They’re absolutely in the minority on the GOP side, but there does seem to be a fatigue setting in — tired of always fighting and always having to defend.”