Maggie Haberman, Jonathan Swan, Julian E. Barnes, and Tripp Mickle, reporting for The New York Times (gift link):

Mr. Rubio’s memo was circulated to administration officials with high-level security clearances ahead of a trip Mr. Trump took to China in May, the people briefed on the matter said. They spoke on the condition of anonymity to discuss sensitive material.

Despite his status as an A.I. pioneer and head of one of the world’s most valuable companies, Mr. Huang was initially left off the list of major business and tech executives invited to join Mr. Trump in China. It is unclear whether the exclusion was connected to the memo. By that point, a number of people inside the administration were concerned about Mr. Huang’s influence on the president’s policy of only lightly regulating A.I. , people briefed on the matter said.

After Mr. Trump saw media coverage about Mr. Huang being absent from the delegation, the president asked him to join the trip by meeting Air Force One during a layover in Alaska.…