President Trump has called National Security Adviser H.R. McMaster "a pain" and complained that he talks too much in meetings, The New York Times reported Tuesday.

Some senior advisers worry about leaving Trump alone during meetings with foreign leaders, the report said.

McMaster has tried to subtly correct Trump in conversations when he thinks necessary and help keep him on topic — a habit that has annoyed Trump, the Times wrote.

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After reports surfaced Monday that Trump had revealed highly classified intelligence to Russian officials, McMaster said outside the White House that the "story that came out tonight, as reported, is false."

On Tuesday, McMaster said Trump did not jeopardize intelligence assets by revealing highly sensitive information to the Russians, adding that Trump did not know where the intel came from.

Speaking to reporters at the White House, McMaster disputed the “premise” of media reports that Trump put intelligence sources in jeopardy by disclosing the information, saying it was “wholly appropriate” for the president to discuss.

"The president in no way undermined sources or methods in the course of this conversation,” he said, adding that the information could be found in "open-source reporting."