McCabe, 49, holds a unique position in the political firestorm surrounding the FBI . He was former director James B. Comey's right-hand man, a position that involved him in most of the FBI's actions that vex President Trump and in the investigation of Hillary Clinton's use of a private email server while secretary of state, a matter that still riles Democrats.
McCabe won't become eligible for his full pension until early March. People close to him say he plans to retire as soon as he hits that mark. "He's got about 90 days, and some of that will be holiday time. He can make it,'' one said.
A spokesman for McCabe declined to comment, as did an FBI spokesman.
Word of McCabe's plans drew a response Saturday from Trump, who in a Twitter post characterized the move as "racing the clock to retire with full benefits."
When Trump fired Comey in May, McCabe stayed to run the agency until a new director was in place and to take the political heat for decisions made by his former boss.
"Andy's in a difficult position now . . . because of the hyperpartisan political environment,'' said John Pistole, who held the FBI's No. 2 job for six years under former director Robert S. Mueller III. Mueller now serves as special counsel, running the investigation into whether any Trump associates conspired with Russian agents to interfere with the 2016 election.
Pistole said McCabe "is weathering the storm."
"It's disappointing," he added, "to see how the criticism of the FBI is being used to try to undermine the credibility of the Mueller investigation. I think they've figured out they can't undermine Bob's integrity, so they're just going to go after whoever they can dig up any dirt on.''
Within the agency, there is praise — but also some criticism — for how McCabe has handled his role. Still, he has become a lightning rod in the political storms buffeting the bureau. Conservatives have called for heads to roll at the FBI, and McCabe is atop the lists of many. But current and former FBI officials said it would be dangerous to appease those demands.
"It would send a terrible message to move him now, but it's also a terrible situation he's in,'' said one law enforcement official.
Last week, the FBI's top lawyer, James Baker, told colleagues he was being reassigned, according to people familiar with the matter.
The pressure on McCabe has only intensified. He got an eight-hour grilling from the House Intelligence Committee on Tuesday and returned to Congress on Thursday to face more than nine hours of questions from the House Judiciary and Oversight committees.
Other senior FBI officials, including those who worked closely with McCabe and Comey, are expected to face similar questioning from Congress next year.
Republicans are focusing in particular on the FBI's relationship with the author of a dossier containing allegations against Trump. The bureau offered to pay the author of that document after the election to keep pursuing leads and information, but the agreement was never finalized, The Washington Post reported earlier this year.
The chairman of the Senate Judiciary Committee, Charles E. Grassley (R-Iowa), has called for McCabe's ouster, saying he "ought to go for reasons of being involved in some of the things that took place in the previous administration. We want to make sure that there's not undue political influence within the FBI — the [Justice] Department and the FBI."
Democrats emerging from Thursday's questioning of McCabe urged him to resist Republicans' calls to step down, saying the GOP's new focus on McCabe smells of political opportunism.
McCabe should not be fired because of "biased political commentary," said Rep. Sheila Jackson Lee (D-Tex.).
Trump and his supporters have made clear they want McCabe gone, but as a civil service employee, he can't be fired outright without a clear finding of major wrongdoing.
Christopher A. Wray became the FBI's director in August, and a new leader typically appoints a new deputy to help run the agency. When Comey became director in 2013, for example, he got a new deputy after about two months.
But within the FBI, even reassigning McCabe is viewed by many as a bad idea. It would be seen as caving to political demands and might provoke calls for additional housecleaning, according to current and former law enforcement officials.
McCabe rose quickly through the FBI's senior ranks, only to find himself, beginning last year, the subject of intense partisan fighting about his conduct.
Republicans attacked him after reports that his wife, a Democratic candidate for a Virginia Senate seat in 2015, had received hundreds of thousands of dollars in campaign donations from the political action committee led by a close ally of the Clintons. He had also been part of discussions with Justice Department officials that critics said prevented FBI agents from more aggressively pursuing their investigation of the Clinton Foundation. Agents were trying to determine whether donations to the foundation were made with an expectation of government favors from Clinton or her allies.
After reports about those issues surfaced in October 2016, then-candidate Trump singled out McCabe for criticism, and congressional Republicans demanded detailed answers from the FBI about his role in the Clinton probes — questions they insist remain unanswered.
In a separate Twitter post on Saturday, Trump expressed his incredulity once more, asking how "How can FBI Deputy Director Andrew McCabe, the man in charge, along with leakin' James Comey, of the Phony Hillary Clinton investigation (including her 33,000 illegally deleted emails) be given $700,000 for wife's campaign by Clinton Puppets during investigation?"
McCabe's role is being examined by the Justice Department's inspector general, who has said a report on how the Clinton probe was handled should be finished by spring.
In May came Comey's firing, which left the FBI, according to one person inside the bureau, "permanently playing defense.''
McCabe was suddenly in charge, and, according to people familiar with the matter, law enforcement officials began to investigate the president for obstruction of justice.
In early December, McCabe faced yet another controversy. The Post reported that one of his senior advisers, FBI lawyer Lisa Page, had exchanged numerous pro-Clinton and anti-Trump text messages with Peter Strzok, the top FBI agent on Mueller's probe. The special counsel removed Strzok when he learned of their communications; Page had left the Mueller team two weeks earlier for what officials said were unrelated reasons. In one text, Strzok wrote that he thought Clinton should win "100,000,000-0.''
More problematic for McCabe is a text in which Strzok told Page, "I want to believe the path you threw out for consideration in Andy's office that there's no way he gets elected — but I'm afraid we can't take that risk. It's like an insurance policy in the unlikely event you die before you're 40.''
Republican lawmakers have seized on the text as evidence that Strzok, Page and possibly McCabe were involved in an effort to somehow ensure Trump would not win the election. But people familiar with the exchange said that the two were debating how overtly they should begin investigating Trump, and that one of the factors they considered was the likelihood he could win the presidency — which they deemed small.
Even that explanation presents a headache for McCabe because it places a conversation in his office about how the expected election outcome should or should not affect the FBI's investigative decisions.
An earlier version of this story incorrectly said a text, which mentioned a meeting in Andrew McCabe's office, was sent by FBI lawyer Lisa Page to FBI agent Peter Strzok. The text was sent from Strzok to Page.