The first modern Farmer–Labor Party in the United States emerged in Minnesota in 1918. The American entry into World War I caused agricultural prices and workers' wages to fall, while retail prices rose sharply during the war years. Consequently, farmers and workers made common cause in the political sphere to redress their grievances.

The Minnesota Farmer–Labor Party (FLP) was a left-wing American political party in Minnesota between 1918 and 1944. The FLP largely dominated Minnesota politics during the Great Depression. It was one of the most successful statewide third party movements in United States history and the longest-lasting affiliate of the national Farmer–Labor movement. At its height in the 1920s and 1930s, FLP members included three Minnesota governors, four United States senators, eight United States representatives and a majority in the Minnesota legislature.