In what way did the Smoot-Hawley Tariff of 1930 affect the U.S. economy?

The Smoot-Hawley Tariff of 1930 significantly raised tariffs on hundreds of imported goods, aiming to protect American industries during the Great Depression. However, it led to retaliatory tariffs from other countries, resulting in a steep decline in international trade. This exacerbated the economic downturn, contributing to widespread unemployment and further deepening the economic crisis. Ultimately, the tariff is often criticized for worsening the Great Depression rather than aiding recovery.