Which president transformed the nature of the presidency and the federal government by putting the president at the center of the government with a broader scope of presidential powers and burgeoning?

Franklin D. Roosevelt transformed the nature of the presidency and the federal government through his New Deal policies and leadership during the Great Depression. He expanded the role of the federal government in economic and social welfare, thereby increasing the scope of presidential powers. Roosevelt's communication style and use of media, particularly his fireside chats, also helped position the president as a central figure in American life and governance. This shift laid the groundwork for a more active and involved executive branch in subsequent administrations.