FILE PHOTO: Donald Trump Jr. speaks at the 2016 Republican National Convention in Cleveland, Ohio U.S. July 19, 2016. REUTERS/Mario Anzuoni/File photo Acquire Licensing Rights (Reuters) - A lobbyist who was once a Soviet counter-intelligence officer participated last year in a meeting with senior aides to U.S. President Donald Trump, including his eldest son, and a Russian lawyer, NBC News reporte