Hoover came into office as a celebrated engineer and organizer but presided over the crash of 1929 and the early years of the Great Depression. His belief in voluntary cooperation, limited federal intervention and measures such as the Smoot‑Hawley tariff drew heavy criticism as unemployment and hardship grew.
After leaving office, Hoover resumed a long public career that included major humanitarian work and leadership of postwar government reform commissions; over time his reputation was partly rehabilitated for his administrative skill and public service even as debate continues over his economic policies during the crisis.