Donald Trump is angry, isolated and "more unpredictable than ever," according to a new report in Politico sourced to four people close to the president.

The president already canceled a trip to South America, apparently acting out after the raid of his attorney Michael Cohen's office, and may now unilaterally fire the people he considers to be responsible for the investigation into his ties to Russia and his lawyer Michael Cohen's activities.

“The all caps tweet, that’s the primal scream. That’s the war cry,” a GOP operative "close to the White House" said to Politico, referencing his early morning rage tweets.

“He’s losing his sh*t,” the source said. “We’re at a different level now.”

Targets of the president's rage—who may find themselves fired while he stews instead of traveling—include Rod Rosenstein and Jeff Sessions.

People who know Trump say that his body language gave away his rage: "his arms crossed and his punchy rhetoric meant, to those who’ve worked with him closely, that Trump was not happy and no amount of information could change his mind."

Having lost close advisors like Hope Hicks and Rob Porter, Politico says Trump is now calling Fox News personalities Sean Hannity, Jeanine Pirro and Lou Dobbs for advice.