A dozen Senate Democrats sent a letter to the Justice Department's Office of Inspector General and Office of Professional Responsibility saying they have “serious concerns" about Barr, who they have accused of being misleading about Mueller's findings.

ADVERTISEMENT “Attorney General Barr’s actions raise significant questions about his decision not to recuse himself from overseeing the Special Counsel’s investigation, whether his actions with respect to the release of the report complied with Department of Justice policies and practices, and whether he has demonstrated sufficient impartiality to continue overseeing the fourteen criminal matters related to the Special Counsel’s investigation,” they wrote.

The Democrats added that “in light of these concerns, we respectfully request that the Office of the Inspector General and the Office of Professional Responsibility immediately begin investigations of these issues.”

Democrats are flagging several areas they want the Justice Department inspector general and Office of Professional Responsibility to investigate, including Barr's decision not to recuse himself from oversight of the Mueller probe.

The lawmakers also want to know if Barr's press conference, which took place hours before a redacted version of the Mueller report was released publicly, and his decision to let Trump's attorneys review the report before it was released was misleading or consistent with Justice Department practices.

"We further believe that Attorney General Barr’s decision to hold a press conference to assert his own views regarding the report well before releasing the redacted report and his statements at the press conference warrant serious scrutiny as to whether they were proper and consistent with Justice Department policies and practices," the Democrats wrote.

Democrats are also asking the Justice Department watchdog to determine if Barr "has demonstrated sufficient impartiality" to oversee criminal referrals spawning out of Mueller's probe or if he's taken any steps on the referrals that "were contrary to the advice of career prosecutors at the Justice Department or the Department’s policies."