Charles Krauthammer reacted to a Washington Post report that President Trump revealed classified information during a meeting with Russian envoys in the Oval Office.
The Democratic National Committee said in a statement that Russia "no longer has to spy on us to get information" because Trump will tell them whenever they ask.
Senate Intelligence Committee Ranking Member Mark Warner (D-Va.) called it a "slap in the face" to the intelligence community.
The intelligence information was reportedly not United States intel, but instead from an anonymous global partner in the war against ISIS.
Krauthammer called the DNC's response "completely irresponsible" because they "have no idea what was revealed."
He remarked that the committee ignored the fact their 2016 presidential candidate, Hillary Clinton, mishandled classified information to a much larger extent that what Trump revealed.
In a statement, Secretary of State Rex Tillerson assured the public that Trump did not discuss "sources, methods or military operations."
On "Special Report," Krauthammer said Trump likely did nothing illegal, but instead committed a blunder.
He added that whatever information was revealed is not as important to the Russians as the source, if it were talked about.
Because the Russians are aligned with Iran and the Hamas militant group in Palestine, that information would be more important to the Kremlin, Krauthammer said.
Senator Patrick Leahy (D-Vt.), a frequent Trump critic, expressed skepticism Trump committed a drastic blunder, James Rosen reported.
Watch more from Krauthammer on the Post report below: