Complex sentence: As a young man, Weaver had been one of 45 prominent African Americans appointed by President Franklin D. Roosevelt to his Black Cabinet, where he acted as an informal adviser as well as directing federal programs during the New Deal.
Split into simpler sentences: As a young man, Weaver had been one of 45 prominent African Americans appointed by President Franklin D. Roosevelt to his Black Cabinet. He acted as an informal adviser to Roosevelt as well as directing federal programs during the New Deal.