Trump told anchor Sean Hannity that his lawyers previously had advised him not to take that dramatic step out of fear that it could be considered obstruction of justice.

"I do, I have plans to declassify and release. I have plans to absolutely release," Trump said. "I have some very talented people working for me, lawyers, they really didn't want me to do it early on."

Trump also accused FBI officials of committing "treason" — slamming former FBI Director James Comey as a "terrible guy," former CIA Director John Brennan as potentially mentally ill, and Democrat House Intelligence Committee Chairman Adam Schiff as a criminal.