The Tariff Act of 1890, commonly called the McKinley Tariff, was an act of the United States Congress framed by then-Representative William McKinley, that became law on October 1, 1890.[1] The tariff raised the average duty on imports to almost 50%, an increase designed to protect domestic industries and workers from foreign competition, as promised in the Republican platform.[2] It represented protectionism, a policy supported by Republicans and denounced by Democrats. It was a major topic of fierce debate in the 1890 congressional elections, which gave a Democratic landslide. Democrats replaced the McKinley Tariff with the Wilson–Gorman Tariff Act in 1894, which lowered tariff rates.[3]