premise: Samuel Bronston (Samuel Bronshtein, March 26, 1908, Bessarabia – January 12, 1994, Sacramento, California) was a Bessarabian-born American film producer, film director, and a nephew of socialist revolutionary figure, Leon Trotsky. He was also the petitioner in a U.S. Supreme Court case that set a major precedent for perjury prosecutions when it overturned his conviction.
hypothesis: Samuel Bronston never met his uncle, Leon Trotsky.
reason: There is nothing in the text that suggests whether he met Leon Trotsky or not. He may have been the petitioner for his case, but it doesn't state if he met him.