William Jennings Bryan, the Democratic candidate for the U.S. presidential election of 1900, ran on an anti-imperialist platform. The U.S. anti-imperialist movement at the end of the 19th century argued that the country's military involvement in the Philippines at the time represented imperialistic designs contrary to the ideals of democracy.
The Spanish-American War, fought in the Spanish territories of Cuba and the Philippines, lasted for three months. After the Spanish defeat, anti-imperialists opposed the annexation of the Philippines by the United States. The issue was hotly debated and made one of the two platforms of the 1900 presidential race in which William McKinley, for the second time, defeated Bryan.