According to NBC news, a source close to the deputy attorney general has indicated that Mr. Rosenstein intends to stay on until Mueller completes his prosecutorial and investigative work for the special counsel's office.
Barr is known for his expansive view of executive power and had previously sent an "unsolicited memo" to Rod Rosenstein criticizing special counsel Robert Mueller's ongoing Russian Federation investigation. Though Rosenstein's office still managed the Mueller investigation, interim attorney general Matthew Whitaker, who was appointed after Sessions was removed, has been overseeing it, as well.
He said Barr has a "high opinion" of Mueller and believes Mueller's "doing a professional job", concluding that the AG nominee is "committed" to allowing Mueller to finish.
Barr's confirmation as attorney general ― a position now occupied on an acting basis by Matthew Whitaker following the forced resignation of Jeff Sessions ― would ensure a smooth transition, the person said.
Whitaker also was critical or skeptical about the special counsel investigation. Those findings are expected to be submitted by mid-to-late February and Rosenstein would resign by early March, according to NBC.
The White House cast Rosenstein's departure as his choice.
He also wanted to help ensure Barr, if confirmed by the Senate, had a smooth transition, ABC said, citing sources.
Rosenstein reportedly planned to stay for two years anyway, and there is no indication that Trump is forcing him out of the administration, ABC reported.
Graham listed a number of questions that he had put to Barr: 'I asked Mr. Barr directly, 'Do you think Mr. Mueller is on a witch hunt?' He said no.
Mr Rosenstein has yet to comment on the reports.
Rosenstein has been a familiar face to viewers as he has occasionally had press conferences to announce the latest developments in Special Counsel Robert Mueller's investigation. He said Barr would be an "excellent attorney general when he is confirmed". As Mueller's investigation has continued to develop, Rosenstein has also been the subject of routine criticism from the president and his allies, fueling speculation that he, too, could be forced out of his position.