NYT: The White House said that Mr. Trump did not know that Mr. Flynn was acting as a foreign agent when Mr. Trump appointed him national security adviser, a position that gave him access to classified meetings and materials. But a person briefed on the matter, who insisted on anonymity to describe private conversations, said Mr. Flynn’s lawyer contacted a lawyer for Mr. Trump’s transition team before the inauguration to ask whether Mr. Flynn should register given his work for Inovo.

The transition lawyer offered no advice, saying it was up to Mr. Flynn. After the inauguration, the person said, Mr. Flynn and his lawyer each raised it again with a White House lawyer, only to be told once more it was up to him. Mr. Flynn had no comment on Friday. His lawyer wrote the Justice Department that Mr. Flynn decided to register retroactively “to eliminate any potential doubt.”