The Washington Post reported Thursday that Mueller is widening his investigation to examine whether the president attempted to obstruct justice by seeking to alter the direction of the FBI's investigation.
President Trump could have taken to social media Friday morning to celebrate the two-year anniversary of his presidential campaign announcement and unlikely political rise that followed.
Did he tell Congress the full story about Mr. Mueller's investigation?
Rosenstein told a congressional panel this week that he was not in favour of firing Mueller without just cause. Comey told Congress last week that he believed he was sacked "because of the Russian Federation investigation".
Feinstein added, "That's undemocratic on its face and a blatant violation of the president's oath of office".
Rosenstein - in charge because Attorney General Jeff Sessions has recused himself from the investigation into the Trump campaign's ties with Russian Federation - then appointed Mueller as special counsel. But Rosenstein, too, may ultimately have to hand off oversight of the probe given his own role in Comey's firing.
Rosenstein privately acknowledged that he may need to recuse himself from the investigation, sources told ABC News this week. An official of Trump's transition confirmed the laywer's internal order sent Thursday.
Comey was later sacked, with Trump acknowledging that the Russian investigation was on his mind when he made a decision to dismiss him.
Trump accused the media of hypocrisy, pointing out that Hillary Clinton was never accused of trying to obstruct justice even though she had her staff smash her private email devices with a sledgehammer.
During a June 13 hearing, Rosenstein specifically was asked by Sen.
The Twitter attacks came as Vice-President Mike Pence hired a personal lawyer to represent him in the intensifying investigation. Pence headed the Trump transition until Inauguration Day. In part, the memo read that former transition team members "have a duty to preserve any physical and electronic records that may be related in any way to the subject matter of the pending investigations".
"Why is [it] that Hillary Clintons [sic] family and Dems dealings with Russian Federation are not looked at, but my non-dealings are?" "Witch Hunt", he wrote on Twitter.