Bernie Sanders served as the 37th Mayor of Burlington, Vermont, from April 6, 1981, to April 4, 1989. Sanders' administration was the first socialist one in New England since the mayoralty of Jasper McLevy. He was regarded as a successful mayor that instituted multiple economic policies in Burlington, and was selected as one of the twenty best mayors in the United States by U.S. News & World Report in 1987. He was active in foreign affairs, primarily in Latin America in which he criticized the policy of the United States and visited Cuba, Nicaragua, and the Soviet Union, and was criticized for it by his opponents.

Burlington is the most populous city in the U.S. state of Vermont and the seat of Chittenden County. It is located 45 miles (72 km) south of the Canada–United States border and 95 miles (153 km) south of Montreal. As of the 2020 U.S. census, the population was 44,743. It is the least populous city in the 50 U.S. states to be the most populous city in its state.