WASHINGTON (AP) — President Donald Trump's new communications director exploded the smoldering tensions at the White House into a full-fledged conflagration Thursday, angrily daring Trump's chief of staff to deny he's a "leaker" and exposing West Wing backstabbing in language more suitable to a mobster movie than a seat of presidential stability.

In a pull-no-punches, impromptu CNN interview that he said was authorized by the president, Anthony Scaramucci went after chief of staff Reince Priebus in graphic terms. "The fish stinks from the head down," he said. "I can tell you two fish that don't stink, and that's me and the president."

Not even a week into his new job, Scaramucci accused unidentified senior officials of trying to sabotage him and committing a felony by leaking information. But the personal financial information that he said someone had "leaked" about him had simply been obtained through a public records request.

Then in an expletive-laden interview published by The New Yorker late Thursday, an angry Scaramucci accused Priebus of being a "f------ paranoid schizophrenic." He also used a graphic sexual reference to make the point that he believes White House chief strategist Steve Bannon used Trump's election win to burnish his own reputation.

He also threatened to fire White House staffers who leaked news about a dinner he had with the president.

"They'll all be fired by me," Scaramucci told the magazine. "I fired one guy the other day. I have three to four people I'll fire tomorrow. I'll get to the person who leaked that to you. Reince Priebus — if you want to leak something — he'll be asked to resign very shortly."

By day's end Scaramucci sounded calmer, though not regretful.

"I sometimes use colorful language. I will refrain in this arena but not give up the passionate fight for @realDonaldTrump's agenda. #MAGA," he tweeted. The tag at the end stands for Trump's "Make America Great Again."

He also blamed the reporter, Ryan Lizza, for reporting the conversation. "I made a mistake in trusting in a reporter," he added later. "It won't happen again."

White House spokeswoman Sarah Huckabee Sanders referred reporters to the first tweet.

The president's senior counselor, Kellyanne Conway, had earlier speculated in a Fox News interview that unnamed forces were out to get Scaramucci, saying: "Somebody is trying to get in his way and scare him off."

"There are leaks and then there are people using the press to shiv each other in the ribs," she said.

Meanwhile, no one in the White House took up for Priebus — including Priebus himself. Sanders avoided giving a direct answer when asked whether Trump has confidence in Priebus.

The past 24 hours provided the clearest evidence yet that Scaramucci and Trump, both brash New Yorkers, are cut from the same cloth. One of their shared techniques: publicly shaming members of their own team.

Scaramucci's goading of Priebus came as Trump continued to fume publicly and privately about his attorney general. Trump has been critical of Attorney General Jeff Sessions for recusing himself from the Justice Department investigation into whether the president's campaign had anything to do with Russian interference in the election last fall.

"It hasn't been my best week ... for my relationship with the president," Sessions acknowledged in an interview with The Associated Press in El Salvador, where he was on a mission to increase international cooperation against gangs.

He said he would stay in his post and fight for Trump's agenda "as long as he sees that as appropriate."

Newt Gingrich, a former House speaker and frequent outside adviser to Trump, said in an interview that Scaramucci's attacks on Priebus are problematic. "They've got to get this sorted out between the two of them, and it would be nice if they didn't do it in public," he said.

Yet after Scaramucci's call-in CNN performance — a move lifted from his boss' playbook — it was difficult to see how the two could mend fences.

"I don't know if this is repairable or not — that will be up to the president," Scaramucci said on air. He compared their relationship to that of brothers who are "rough on each other," invoking the biblical story of Cain and Abel. Cain murdered Abel.

The bad blood stems from Scaramucci's view that Priebus was insufficiently supportive of Trump at the end of the election campaign and his belief that Priebus persuaded the president to keep him out of the White House in January. Six months later, Scaramucci's close relationship with the president trumped opposition to his hiring from Priebus and Bannon.

Scaramucci's arrival in the West Wing last Friday marked the first in a series of falling dominoes that seemed to be leading toward Priebus. Press secretary Sean Spicer, a close ally of Priebus, resigned last week. Scaramucci then forced out another communications aide close to Priebus.

Scaramucci then tweeted that someone had illegally leaked financial information about him, conspicuously mentioning Priebus' Twitter handle. Scaramucci later deleted that tweet and said he had only mentioned Priebus to show that all senior leaders are taking leaks seriously.

"In light of the leak of my financial disclosure info which is a felony, I will be contacting @FBI and the @JusticeDept #swamp @Reince45," his since-deleted tweet read.

Scaramucci's financial disclosure form wasn't leaked at all. It was released after a public records request by a Politico reporter.

In the CNN interview, Scaramucci said he'd be reaching out to his "buddies" in the FBI about the matter.

If Scaramucci tries to direct the FBI to conduct a leak investigation, that could brush up against the Justice Department's obligation to function independently from the White House, said Mark Zaid, a national security lawyer in Washington.

"It starts to potentially smell and approach an inappropriate line," Zaid said.

Brad Gerstman, a New York lobbyist and public relations executive, said it probably doesn't matter to Trump that Scaramucci and Priebus don't get along. Gerstman has done projects for the Trump Organization and is a neighbor and longtime friend of Scaramucci's.

"In my experience, he's of the belief that sometimes a little friction in the ranks is how you surface the best ideas," Gerstman said of Trump.

But another rule of thumb in Trump's inner circle is that it's never wise to outshine the president.

Trump has reacted angrily when certain aides — including Bannon and, briefly, son-in-law Jared Kushner — received outsized media attention.

Ari Fleischer, who served as press secretary under George W. Bush, said, "Ask Steve Bannon what happens if you get too much publicity and go too far."

"It reminds me of Icarus flying too close to the sun."

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Lemire reported from New York. Associated Press writers Vivian Salama, Eric Tucker and Jill Colvin contributed to this report.