https://en.wikipedia.org/wiki/Minnesota_Democratic%E2%80%93Farmer%E2%80%93Labor_Party
The Minnesota DemocraticFarmerLabor Party (DFL) is a social liberal political party in the U.S. state of Minnesota. It is affiliated with the United States Democratic Party. Formed by a merger of the Minnesota Democratic Party and the social democratic Minnesota FarmerLabor Party in 1944, the DFL is one of only two state Democratic party affiliates of a different name (the other being the North Dakota Democratic-Nonpartisan League Party).
The DFL was created on April 15, 1944, with the merger of the Minnesota Democratic Party and the FarmerLabor Party. Leading the merger effort were Elmer Kelm, the head of the Minnesota Democratic Party and founding chairman of the DFL; Elmer Benson, effectively the head of the FarmerLabor Party by virtue of his leadership of its dominant left-wing faction; and rising star Hubert H. Humphrey, who chaired the Fusion Committee that accomplished the union and then went on to chair its first state convention.
Orville Freeman was elected the state's first DFL governor in 1954. Important members of the party have included Minneapolis mayor Hubert H. Humphrey and Minnesota Attorney General Walter Mondale, who each went on to be United States Senators, Vice Presidents of the United States, and unsuccessful Democratic nominees for president, Humphrey in 1968 and Mondale in 1984; Eugene McCarthy, a U.S. senator who ran for the Democratic presidential nomination in 1968 as an anti-Vietnam War candidate; and Paul Wellstone, a U.S. senator from 1991 to 2002 who became an icon of populist progressivism.[1]
I once heard it said that the biggest mistake the Farmer-Laborites ever made was to let the Democrats in. I sometimes agree with that.
https://en.wikipedia.org/wiki/Farmer%E2%80%93Labor_Party
The first modern FarmerLabor Party in the United States emerged in Minnesota in 1918. Economic dislocation caused by American entry into World War I put agricultural prices and workers' wages into imbalance with rapidly escalating retail prices during the war years, and farmers and workers sought to make common cause in the political sphere to redress their grievances.