The President's call for a review of how the FBI handled questions about Russian interference is already the subject of a review inside the Justice Department - officials decided to simply expand that to include a review of what the President had asked for, and not be pressured into an investigation.
"There are rules," said Carrie Cordero, a former Justice Department national security lawyer, who is now a professor at Georgetown University Law School.
In Congress, Democrats saw the President's tweets as a signal of one thing - that he's worried about what investigators are finding out about the 2016 probe, as they raised questions of whether the President is trying to exert political pressure on the Justice Department.
"Trump’s claim of an embedded “spy” is nonsense," said Rep. Adam Schiff (D-CA). "His “demand” DOJ investigate something they know to be untrue is an abuse of power, and an effort to distract from his growing legal problems."
"The President has sent 8 tweets in 5 hours on Hillary and the Mueller investigation," said Rep. Gerry Connolly (D-VA). "He is unhinged."
"You need to be subpoenaed for obstruction of justice/conspiracy/money laundering," said Rep. Joaquin Castro (D-TX). "Let Mueller do his job."
Democrats also questioned how the FBI did anything improper with regards to the Trump Campaign, because while then-Director James Comey spoke out about the Hillary Clinton email investigation just before the election, he said nothing about an ongoing counter-intelligence probe involving Mr. Trump's campaign and Russia.
"A President who has nothing to hide would not have done another series of tweets this Sunday Morning smearing the DOJ investigation," said Rep. Ted Lieu (D-CA).