The White House denies any collusion. "Witch Hunt", he said.
President Donald Trump appeared to confirm Friday that he is under investigation for obstruction of justice, claiming that he is being investigated for firing FBI Director James Comey by the man who told him to do it.
It wasn't immediately clear to whom Trump was referring to in his comment "the man who told me to fire" Comey.
Administration officials and the president's advisers are anxious Trump's tweets and public statements about the Russian Federation probe will trigger additional damaging leaks, but they said he can not stop talking about the investigation, reported Politico. "That's undemocratic on its face and a blatant violation of the president's oath of office". Rosenstein also appointed Robert Mueller as special counsel to investigate all things Trump and Russian Federation.
In that memo, however, Rosenstein never explicitly called for Comey's firing. But Rosenstein is not supposed to be involved in the day-to-day operations, and he testified at a Senate hearing earlier this week that he had not spoken with Mueller since he appointed him as special counsel on May 17.
It was unclear whether Trump had received official notification that he was under investigation or was merely responding to media reports.
Why is Mr Trump being investigated?
In late May, Trump hired longtime legal adviser Marc Kasowitz to serve as his attorney in Russia-related matters.
People familiar with the matter told the Post that the investigation into Trump for possible obstruction of justice began days after Trump abruptly fired Comey on May 9. "Witch Hunt", Trump tweeted on Friday morning. White House officials had no case ready for the dismissal of Comey and received heavy criticism for the conflicting explanations about his departure.
If Rosenstein recuses himself, Brand, a Trump appointee, would become the top Justice official overseeing Mueller's work. The order also demands that records be kept on any foreign travel by members of Trump's transition team and presidential campaign.
Trump admitted in an interview with NBC News' Lester Holt days after Comey's ousting on May 9 that the Russian Federation investigation influenced his decision to terminate him. The memo asks for preservation of electronic communications and data, telephone logs, audio recordings, videos, calendars and other items.
Trump's tweet could force Rosenstein's recusal in the Mueller investigation, according to a Bloomberg View article by Harvard law professor Noah Feldman.
He had likened the appointment of the special counsel with the "single greatest witch hunt of a politician in American history".