Accusations of obstruction arose last month when Trump fired former Federal Bureau of Investigation director James Comey.
Trump took to Twitter Friday morning to lash out at the months-long investigation into Russian Federation meddling.
Meanwhile, the White Housesaid on Thursday that it would have no comment about the revelation, with deputy Press Secretary Sarah Sanders simply referring all questions to the President's personal lawyer, Marc Kasowitz.
Reports that Trump allegedly asked two intelligence chiefs to publicly deny any cooperation between his campaign and Russian Federation are also said to be part of the investigation.
"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", she said. "Witch Hunt", Trump tweeted on Friday morning.
Today, in another series of furious tweets, it seems Trump has inadvertently confirmed this news.
But Rosenstein is not now heading the FBI's probe into the Trump campaign's possible collusion with a Russian campaign that US intelligence officials have said was seeking to tilt the outcome of the 2016 election in Trump's favor.
Mr Trump's tweet sparked the derision of social media users.
He had likened the appointment of the special counsel with the "single greatest witch hunt of a politician in American history".
Mr Trump denied those allegations, saying he would be more than willing to offer his own testimony under oath.
The inquiries appear to be part of a fact-finding mission and it would ultimately be up to Mueller to decide whether there is enough evidence to recommend pursuing charges on any part of the investigation.
US Open at Erin Hills, final round
Open , joining Miller, Jack Nicklaus, Tom Weiskopf and Vijay Singh but Thomas is the only one to do it on a par-72 course . Brian Harman, who had the lead coming into the day, made a long birdie putt on No. 3 to join Koepka on top.
Sixers will acquire No. 1 pick to draft Markelle Fultz
That's how highly I think of Fultz. "I had some stuff going on with my knee - I don't really want to address it", Fultz said. Fultz ended his freshman season averaging 23.2 points, 5.8 assists, 5.6 rebounds, 1.5 steals and 1.1 blocks per game.
Jordan Spieth finishes US Open on a high note
He dropped nine shots over the next seven holes - three double bogeys, three bogeys and one par. "Not your typical U.S. Open after Dustin Johnson's victory at Oakmont previous year and Jordan Spieth's win at Chambers Bay in 2015.
CWS qualifiers generally familiar with Omaha heartbreak
Steve Scalise (R-La.) watched a Louisiana State University baseball game Saturday evening as he recovers from a gunshot wound. WEATHER REPORT: The LSU-FSU game began in the light drizzle that started at the end of the Oregon State-Cal Fullerton game.
No winners in Trump's reversal of US Cuba policy
Other Cuban-American lawmakers started getting briefed on the policy Thursday. "Our view is we are", Tillerson said. More details about the changes are expected to be released Friday, when the new policy is set to take effect.
WWE Money in the Bank 2017 results
Much to Cena's chagrin, Big Show interfered in this match, attacking John Cena and resulting in Cena winning by disqualification. Along with the tournament, the main event for July 1 is IWGP heavyweight champion Kazuchika Okada defending against Cody Rhodes.
French Open 2017: Teenager shocks Wozniacki
While Wozniacki was among the strongest remaining women's singles players, she could not stop the young Latvian tennis player. Yesterday's scheduled men's quarter-finals involving Novak Djokovic and Rafael Nadal were postponed until this morning.
Original Xbox Backward Compatibility Won't Be as Big as 360
The boss of Xbox is so confident about the firm's games line up he's crowed "we don't need Halo or Gears of War to sell consoles". Image credit: Wccftech .com " The thing that we should all realize is that that customer buys a lot of games", Spencer said .