AP Photo/Andrew Harnik
"In light of the leak of my financial disclosure info which is a felony. I will be contacting @FBI and the @TheJusticeDept #swamp @Reince45," Scaramucci's tweet read.
Scaramucci appears to reference a story of an alleged financial disclosure that was reported by Politico earlier Wednesday.
The report claimed that Scaramucci earned $4.9 million from his stake in the investment firm SkyBridge Capital and a salary of more than $5 million from the Export-Import Bank in 2016.
Scaramucci's tweet comes amid long-playing rumors of turmoil between Scaramucci and Priebus - and speculation that Priebus' job may be on the line now that Scaramucci is firmly in President Donald Trump's inner circle as the new White House communications director.
Priebus and former White House press secretary Sean Spicer were both vehemently against Scaramucci's hiring.
Scaramucci's apparent veiled threat may be motivated by other factors, as CNN reporter Evan Perez notes that "financial disclosure forms are filed with the Office of Government Ethics (OGE) and are not classified."
CNN contributor Ryan Lizza also said Wednesday night that Scaramucci blamed Priebus "for blocking him at every turn" when he tried to get a job in the White House soon after Trump was elected.
Lizza said that Scaramucci tried to go around Priebus to talk to Trump about working in his administration, and later blamed Priebus "for cancelling three scheduled meetings with the president" before he was eventually hired as communications director.