Around 7:30 p.m., Sanders emerged to announce that White House officials would not be answering any more questions for the evening.
Trump's meeting with the Russian foreign minister and ambassador to the U.S. - where he spilled the information - came one day after the president fired FBI Director James Comey, who was leading the investigation of possible ties of collusion between Trump campaign officials and Russia.
President Donald Trump shared highly classified information with the Russian foreign minister and Russian ambassador to the United States in a White House meeting last week, according to The Washington Post.
The report added there was no permission from the partner to share the information with Russian Federation. That development that could shatter trust that is essential to intelligence and counterterrorism cooperation.
Current and former US officials told the Post that the information Trump shared jeopardized a critical source of intelligence on the Islamic State.
"If this is true, the president should explain to the American people why he divulged classified information to the Putin regime".More news: Kenya's Eliud Kipchoge sets new unofficial marathon world record
McMaster says the president did not discuss details that were not already known publicly.
"They are in a downward spiral right now and have got to figure out a way to come to grips with all that's happening", Corker told reporters. "The on-the-record accounts should outweigh those of anonymous sources".
"I was in the room, it didn't happen", McMaster told reporters after emerging. "It sounds like White House is parsing words by saying "didn't discuss sources or methods" as a weak cover your a**", a former officer reportedly said.
One of the officials with knowledge of Trump's meeting with the Russian called the timing of the disclosure "particularly unfortunate", as the president prepares for a White House meeting on Tuesday with Turkish president Tayyip Erdogan, an ally in the fight against Islamic State.
Since coming to office in January, Trump has lurched from crisis to crisis, lampooning the intelligence services, law enforcement and the media along the way.
The revelation came at a sensitive time for the president, who less than a week ago cited "this Russian Federation thing with Trump" in explaining why he fired FBI Director James Comey, who was leading an investigation into Russia's interference with the 2016 election.More news: Activists say Kurdish-led forces advance on IS-held Raqqa
But he noted that he had a problem with Trump's tweet Friday, threatening to release possible tapes of conversations with Comey. "If the President outed a highly classified code-word source intentionally, that would be even more risky". Many Republican lawmakers said they had not seen details about the report and did not want to comment.
"We have no way to know what was said, but protecting our nation's secrets is paramount", said Doug Andres, a spokesman for House Speaker Paul Ryan. John Thune, R-S.D., the chairman of the Senate Republican Conference. But he cautioned: "Let's wait and see what this was all about first".
Trump has a contentious relationship with American spy agencies.
Lindsey Graham, a South Carolina Republican, felt the same way, telling reporters the story was "troubling, if true". "Revealing classified information at this level is extremely risky and puts at risk the lives of Americans and those who gather intelligence for our country".
Greg Miller, one of The Post reporters who broke the story, told NPR's Ari Shapiro on All Things Considered that by sharing the information from another country, it could damage future intelligence gathering and US relations with other partners.More news: Veteran Mexican journalist Javier Valdez is killed