WATCH: National Security Adviser H.R. McMaster holds White House press briefing

Update: This event has ended.

National Security Adviser Army Lt. Gen. H.R. McMaster will address the White House press corps on Tuesday, after the Washington Post broke the news that Trump shared confidential information with Russian officials.

McMaster addressed press during an emergency press conference on Monday, during which he stated Trump "did not disclose any military operations that were not already publicly known."

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