Rosenstein last month appointed former FBI Director Robert Mueller as special counsel overseeing the probe.Hours later, a source close to Trump’s outside legal team said Trump did not intend his tweet to be confirmation of the investigation but rather was reacting to a Washington Post story on Wednesday about the probe.Is there an investigation?President Donald Trump’s closest allies are attacking the integrity of those involved in the widening probe of Russian interference in the US election, accusing special counsel Robert Mueller of driving a biased investigation. The former FBI director testified under oath Thursday that Trump asked for his loyalty and inappropriately pushed him to end an investigation of former National Security Adviser Michael Flynn related to possible ties between the Trump campaign and Russia’s meddling in last year’s election.The Justice Department’s special-counsel investigation into Russia’s meddling in the 2016 US presidential election is now also reportedly examining whether President Donald Trump attempted to obstruct justice.Rosenstein now has such authority because Attorney General Jeff Sessions recused himself on March 2 after revelations of previously undisclosed meetings with Russia’s ambassador to Washington while he was a Trump campaign advisor.Earlier this week, a friend of Trump said the president was considering it.The White House referred questions to Trump’s personal attorney, Marc Kasowitz.”But he’s not yet made that momentous decision to go for a full-scale investigation”. Grassley said Comey’s dismissal and Comey’s testimony on Lynch should be looked at together, noting that Comey “took the opportunity in his testimony to clear his own name by denouncing as false the administration’s claims that the FBI rank-and-file had lost confidence in Mr. Comey’s leadership in the wake of the Clinton email investigation”.Sen. Dianne Feinstein, the top Democrat on the Senate Judiciary Committee, said she was “increasingly concerned” that Trump will fire both Mueller and Rosenstein.At a hearing last week of the Senate Intelligence Committee, Coats and Rogers refused to say whether they were asked by Trump to help impede an FBI investigation and suggested any response in a closed hearing would require consultations with White House lawyers on whether executive privilege should be invoked.This widening Russian Federation probe has also prompted close Trump associates to start “lawyering up”.Mr Trump yesterday announced the partial reversal of Barack Obama’s Cuba policy, reimposing restrictions on travel and business in a move he said would “empower the Cuban people and hold the regime accountable”. Former House Speaker Newt Gingrich this week called Mueller “now clearly the tip of the deep state spear aimed at destroying or at a minimum undermining and crippling the Trump presidency”.”Nice”, the president tweeted.Trump sent more tweets early Friday morning attacking the investigation as “phony”. The presumption, however, is that Mr. Comey’s dismissal was due to official inquiries he was making about Trump’s inner circle, namely, former National Security Adviser Michael Flynn, and its ties with Russian Federation.Vice President Mike Pence has hired a private lawyer to represent his interests in the expanding probe.