President Trump was reportedly so enraged by an FBI raid of his personal attorney's office and hotel that he is now on the brink of firing Rod Rosenstein, the deputy attorney general he appointed, as well as Attorney General Jeff Sessions.

"It's a matter of when, not if," an anonymous person who has been in talks with Trump this week told The Wall Street Journal.

Investigators seized files from Michael Cohen, Trump's longtime attorney, on Monday. The raid was conducted by Manhattan law enforcement, but was based on a referral from Special Counsel Robert Mueller, who is leading the probe into Russian interference in the 2016 presidential election and whether the Trump campaign was involved. Rosenstein is overseeing the special counsel investigation.

The Cohen raid indicated that Mueller's investigation is encroaching on Trump's inner circle, which reportedly angered the president greatly. It was "not good for the long-term relationship between the president and Sessions and Rosenstein," a source told the Journal.

The White House is reportedly seeking to build a case for the firing of Rosenstein and has asked allies outside of the administration to publicly attack the deputy attorney general and Mueller's probe. Trump's advisers have warned him that firing Rosenstein would be extremely risky and could cause a constitutional crisis. But the Journal's sources say Trump wants the top Justice Department officials gone anyway: "Eventually, it will happen," a source said.

Read more at The Wall Street Journal. Summer Meza