During the expletive-laden rant, the newly appointed director of communications also rubbished the White House chief strategist, saying: "I'm not Steve Bannon. I will refrain in this arena but not give up the passionate fight for @realDonaldTrump's agenda", including the hashtag for Trump's campaign slogan, "Make America great again".
Ryan was also among the prominent GOP lawmakers who praised the selection of Homeland Security Secretary John Kelly as Trump's new White House chief of staff.
That none in the White House came forth to Preibus' defence can only be ominous development for the chief of staff, who has seen his power base erode steadily with each passing day of the Trump administration.
Some senior White House aides are encouraging President Trump to move embattled Attorney General Jeff Sessions from his post as attorney general to the now-vacant leadership spot at Department of Homeland Security, ABC News has learned.
Priebus was head of the Republican National Committee during the 2016 Republican primaries and became a top adviser to candidate Trump.
'This is good for the president, I think it's smart for him to pick General Kelly, and I think things are going to be run very well'.
Mr Priebus said in a televised statement from the White House: "The President has a right to hit a reset button".
"Reince is a good man. John Kelly will do a fantastic job", Trump said.
He was said to be frustrated over an alleged strategy by Mr Trump's lawyers to discredit or curb the investigation.
In an apparent attempt at damage control, Scaramucci tweeted late Thursday: "I sometimes use colourful language".
Trump's first White House press secretary, Sean Spicer, resigned last week with the news that Scaramucci was being brought on as communications director.
And it looks like said chief of staff, Reince Priebus, is out on the curb, or as Scaramucci Mane might put it, "Reince Priebus sleeps with the fishes".
Secretary Kelly has earned respect and admiration from both sides of the aisle and will be a tremendous asset to the President as Chief of Staff. "He is a Great American". "Secretary Kelly is an outstanding leader who has served his country honorably and I know he will do an excellent job at the White House".
Priebus said he was proud to serve the administration.
But, he added, "when you lose one in combat, there's a - in my opinion - there's a pride that goes with it, that he didn't have to be there doing what he was doing".
Priebus' position was far from tenable well before his simmering feud with Scaramucci exploded into full public view, however.
In his six months at Homeland Security, Kelly has overseen ramped up immigration enforcement.
Since the position was first created in 1946, the average tenure of the 29 chiefs of staff stretches almost two and a half years, according to a CNN analysis of data from a Discovery Channel project called The Presidents' Gatekeepers.