(CNN) Senate Minority Leader Chuck Schumer called President Donald Trump's criticism of US intelligence leaders' security assessments a threat to the public's trust in national security in a letter to Trump's intelligence chiefs Wednesday.

Trump, in a rebuke that was reminiscent of his past criticisms of law enforcement officials, said earlier Wednesday on Twitter that the intel chiefs who contradicted him at a congressional hearing on Tuesday were "extremely passive and naive" on the matter.

"The Intelligence people seem to be extremely passive and naive when it comes to the dangers of Iran. They are wrong!" Trump tweeted. "When I became President Iran was making trouble all over the Middle East, and beyond. Since ending the terrible Iran Nuclear Deal, they are MUCH different, but a source of potential danger and conflict. They are testing Rockets (last week) and more, and are coming very close to the edge. There economy is now crashing, which is the only thing holding them back. Be careful of Iran. Perhaps Intelligence should go back to school!"

Trump's reaction "was extraordinarily inappropriate and will undermine public confidence in the US government's efforts to protect our national security and preserve US power and influence abroad," Schumer wrote in a letter to Director of National Intelligence Dan Coats.

The New York Democrat called for Coats, FBI Director Christopher Wray and CIA Director Gina Haspel to convincingly explain their findings to Trump in order to present a united front on intelligence matters.

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