The U.S. president known for the New Deal policies during the Great Depression was Franklin D. Roosevelt. He implemented a series of programs and reforms aimed at economic recovery, relief, and transformative reforms in the banking and labor sectors. The New Deal included initiatives like Social Security, public works programs, and financial reforms to stabilize the economy and provide jobs to millions. Roosevelt's policies reshaped the relationship between the government and the economy, ushering in a new era of federal involvement in the nation’s welfare and directly addressing the impacts of the Great Depression on American society.