In interviews, Scaramucci repeatedly warned Trump aides that he was launching a new effort to ferret out individuals leaking embarrassing information. He began tarnishing Priebus publicly, first in an interview on CNN
, comparing his relationship with Priebus to that of the fratricidal brothers Cain and Abel, and later in an expletive-laced rant to the New Yorker
, where he described the former Republican National Committee chairman as a "paranoid schizophrenic, a paranoiac."
Scaramucci's crude comments last week about Priebus and senior strategist Steve Bannon had not seemed to initially agitate Trump, who invited Scaramucci the next morning to fly aboard Air Force One and later announced he was replacing Priebus, an apparent coup for Scaramucci.
A White House official said Trump originally found Scaramucci's comments about Priebus and Bannon -- which described the men as paranoid and self-serving -- as funny and "amusing."
But as time went on, the President became annoyed with the negative coverage because it "took over everything," the official said. In Trump's mind, his new communications director's profile had become outsized. Scaramucci was "grandstanding," one source close to the White House said, a grave misdeed that Trump punished by banishing him to "the cheap seats in centerfield."
The President asked a very close ally on Sunday if Scaramucci had seriously and permanently damaged himself. The ally replied that he had, a person familiar with the conversation said, and Trump seemed to agree.
Nevertheless, Scaramucci began Monday believing he could weather the storm surrounding him, three people who talked to him said. "He had no plans to resign," a person who talked to Scaramucci Monday said. "He thought he could fix it."
It turned out he was wrong.
'John Kelly is in charge now'
Kelly, who told White House staffers in a morning meeting that he plans to demand order and discipline among the ranks, "clearly had no confidence in (Scaramucci)," one person close to the new chief of staff said.
"John Kelly is in charge now," the person said. "Scaramucci is a very different employee than what Kelly would tolerate working with."
Two more sources close to the White House said it was more than just Kelly who was unhappy with Scaramucci -- Trump himself, while initially supportive of Scaramucci's behavior last week, eventually soured on his communications director.
White House press secretary Sarah Huckabee Sanders acknowledged on Monday that Trump found Scaramucci's coarse descriptions of Priebus and Bannon unacceptable.
"The President certainly felt that Anthony's comments were inappropriate for someone in that position, and he didn't want to burden General Kelly also with that line of succession," Sanders said.
Scaramucci officially held the job for five days, the shortest tenure of any communications director at the White House, according to CNN's count. Scaramucci accepted the job on July 21, ten days before he resigned, but his official start date was July 26.
Both standards would amount to the shortest of any former White House communications director, a title formerly held by Jack Koehler, who resigned 12 days into his 1987 tenure after it became public that, at 10 years old, he was a member of a Nazi youth group.
At the White House, the news of Scaramucci's dismissal was met with a now-practiced response. Reporters scrambled to the press offices to seek comment, aides walked briskly between rooms avoiding questions, and the President went about his schedule.
Within the hour of the news breaking, a smiling Kelly was seen in the White House East Room to watch as Trump awarded his first Medal of Honor.
Also present: Spicer, the former press secretary, who remains on the payroll as Sanders transitions into the job as his successor. As news of Scaramucci's demise emerged, Spicer's mood was upbeat and smiling.
Trump himself sought to deliver a similar message on Friday as the day wound down.
"A great day at the White House!" he declared on Twitter