Trump did not identify "the man" but appeared to be questioning the integrity of Deputy Attorney General Rod Rosenstein, the Justice Department's No. 2 official who appointed Mueller on May 17, supervises the probe and wrote a memo to Trump critical of Comey that preceded Comey's firing.
Following Comey's ouster, however, Rosenstein then appointed Mueller as a special prosecutor to take over the federal investigation into whether any Trump associates coordinated with Russian efforts to meddle in the 2016 election.
While appearing on several talks shows on Sunday, Jay Sekulow, a lawyer from US President Donald Trump's legal team, denied that Trump was under investigation for firing former FBI director James Comey.
Earlier this week, a friend of Trump's said the president was considering firing Mueller - a task that would be complicated by Justice Department regulations, which say that only the attorney general may fire a special counsel and only if there is good cause.
"This is a political fight and he's going to fight it", a White House official said regarding president's Friday's tweets.
"The message the president is sending through his tweets is that he believes the rule of law doesn't apply to him and that anyone who thinks otherwise will be fired", Feinstein said.
USA intelligence agencies concluded in a report issued in January that Russian Federation interfered in the presidential race to try to help Trump win, in part by hacking and releasing emails damaging to Democratic candidate Hillary Clinton.
Verizon completes its Yahoo acquisition, Marissa Mayer resigns
Last week Verizon planned to cut about 2,000 jobs, or 15%, of the 14,000 employees at its Yahoo and AOL companies. As part of the severance package , she will get $23 million from Verizon .
It's unclear if the president is referring to direct knowledge that he's being investigated or reacting to media reports.
"And in fact when I chose to just do it, I said to myself, I said you know, this Russian Federation thing with Trump and Russian Federation is a made up story", he said then. "Witch Hunt", Trump wrote on Twitter.
Democrats and Never Trump Republicans are setting up perjury traps just as Democrats did during Watergate and countless other investigations. Comey later revealed that he orchestrated a disclosure of details about conversations with Trump to prompt the appointment of a special counsel. The US Supreme Court let the lower court ruling stand a year ago after a four-four tie vote. Trump's backers are also fuming over the latest round of anonymous leaks, which they say are created to keep a shadow of suspicion over the White House. But Trump, as president, has the authority to fire Rosenstein, a career justice department civil servant who has worked under five presidents. Pence headed the Trump transition until Inauguration Day. With just about a week to go before India's Prime Minister Narendra Modi is scheduled arrive in Washington to meet Trump on June 26, the United States capital is awash with intrigue and suspense, with frequent parlor talk about if and when Trump will throw in the towel and the prospect of a "President Pence".
Aides said that the President had made a decision to take matters into his own hands and believed he was his own best defender in the escalating crisis surrounding the White House. He has already been subpoenaed by the House intelligence committee. According to the timeline provided by the White House, Trump had met on May 8 with Rosenstein and Attorney General Jeff Sessions, who told their boss during the meeting they had concerns about Comey.
Starr is best known for his work investigating former President Bill Clinton in the 1990s.