Trump is still “obsessed” with finding the person, though he is being counseled by White House chief of staff John Kelly to let it pass, to avoid bringing more attention to the claims in the op-ed. The opinion piece was written by an anonymous senior administration official alleging an internal resistance to the President in his own administration.

CNN is not aware of the identity of the individuals White House aides have zeroed in on. In an interview with CNN’s Christiane Amanpour, White House counselor Kellyanne Conway said Trump believes the individual is someone from the national security sector of the government.