Washington (CNN) House Intelligence Committee Chairman Adam Schiff has hired officials with experience at the National Security Council to help with his panel's oversight of President Donald Trump's administration, according to a committee aide.

The aide declined to say how recently the newly hired officials worked at the council, whether they served under Trump or to identify the individuals. But the move appears to have enraged the President and some members of his senior staff, who view the move as an intrusion. It comes as Democrats prepare to wield new investigative power after winning a House majority in 2018.

Trump fumed on Twitter Thursday about the recently launched investigations led by the Democratic intelligence chair and suggested he was raiding the White House staff.

....The Dems and their committees are going "nuts." The Republicans never did this to President Obama, there would be no time left to run government. I hear other committee heads will do the same thing. Even stealing people who work at White House! A continuation of Witch Hunt! — Donald J. Trump (@realDonaldTrump) February 7, 2019

"I hear other committee heads will do the same thing. Even stealing people who work at White House! A continuation of Witch Hunt!" Trump wrote.

Later, the White House implied Schiff, who announced a sweeping investigation into the President and his finances this week , has recently hired or is interviewing officials from the administration to work on his committee that is now investigating the President.

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