U.S. officials said Trump discussed intelligence about Islamic State with Russian Foreign Minister Sergei Lavrov and Russian Ambassador Sergei Kislyak at last Wednesday’s talks in the Oval Office.
The information had been supplied by a U.S. ally in the fight against the militant group, the officials said.
The New York Times, The Wall Street Journal and CNN identified the ally as Israel but two U.S. national security sources said they doubted that. Israeli officials declined to comment.
The disclosure of Trump’s discussion rocked the administration as it struggled to move past the backlash over Trump’s abrupt firing on May 9 of FBI Director James Comey, whose agency is investigating potential ties between Russia and Trump’s 2016 presidential campaign.
Trump said on Twitter on Tuesday he had an “absolute right” to share facts with Russia, adding he wanted Moscow to be more active in fighting Islamic State militants.
The Senate Intelligence Committee has asked the White House for more information about reports that Trump gave intelligence information to the Russians, a spokeswoman for the panel said.
Congressional investigators are expected to seek copies of any notes taken during the meeting, a congressional source said.
Trump’s main guest at last week’s meeting was Lavrov, the leading promoter of Russian foreign policies that are often sharply at odds with U.S. aims in Syria and Europe.
While not unprecedented, it is rare for a foreign minister to be granted bilateral talks in the inner sanctum of the White House with a U.S. president as Lavrov was.
Trump repeatedly called during his campaign for improved U.S. relations with Russia, damaged by years of disagreement over Russia’s role in Ukraine and its backing for Syrian President Bashar al-Assad.
But his ties with Russia have clouded the early months of his presidency. Along with the FBI probe, congressional committees are investigating alleged Russian meddling in the election and whether there was any collusion by the Trump campaign.
A U.S. president has the authority to disclose even the most highly classified information at will, but U.S. and allied officials said that by giving information to Russia, Trump had endangered cooperation from an ally that has intelligence on Islamic State.
U.S. Representative Barbara Comstock, a Republican, called for immediate classified briefings for lawmakers “so that Congress can at least know as much as Russian leaders.”
“Anything you give the Russians, you have to assume the worst, not the best,” Republican Senator Lindsey Graham told Fox News. “So clearly the president didn’t do anything illegal. But my advice to the president would be if you’re going to talk to the Russians about anything sensitive, run it through the system first.”
TRUMP’S “ABSOLUTE RIGHT”
Trump took to Twitter on Tuesday to defend his actions.
“As President I wanted to share with Russia (at an openly scheduled W.H. meeting) which I have the absolute right to do, facts pertaining to terrorism and airline flight safety,” Trump tweeted. “Humanitarian reasons, plus I want Russia to greatly step up their fight against ISIS & terrorism.”
Islamic State, or ISIS, holds territory in Iraq and Syria and is a common foe of Moscow and Washington.
National security adviser H.R. McMaster said Trump did not know the source of the information he disclosed to the Russians so could not have compromised the U.S. ally.
“What the president shared was wholly appropriate,” he said.
The two top Republicans in Congress, House Speaker Paul Ryan and Senate Majority Leader Mitch McConnell, were muted in their response to Trump giving information to Russia.
Ryan’s office said he hoped for a full explanation.