<P> The Wisconsin Progressive Party (1934--1946) was a political party that briefly held a dominant role in Wisconsin politics . </P> <P> The Party was the brainchild of Philip La Follette and Robert M. La Follette, Jr., the sons of the famous Wisconsin Governor and Senator Robert M. La Follette, Sr...The party was established in 1934 as an alliance between the longstanding "Progressive" faction of the Republican Party of Wisconsin, led by the La Follette family and their political allies, and certain radical farm and labor groups active in Wisconsin at the time . The party served as a vehicle for Philip to run for re-election as Governor of Wisconsin and for Robert to run for re-election to the United States Senate . Both men were successful in their bids, and the party saw a number of other victories as well in the 1934 and 1936 election, notably winning several U.S. House seats and a majority of the Wisconsin State Senate and Wisconsin State Assembly in 1936 . Their grip on power was short - lived, however, and they succumbed to a united Democratic and Republican front in 1938 which swept most of them out of office, including Philip . They were further crippled that year by attempting to expand the party to the national level . </P> <P> Orland Steen Loomis was the last Progressive to be elected Governor of Wisconsin, in the 1942 election . He died, however, before his inauguration as governor . Robert La Follette Jr. held on to his Senate seat until 1946 when the La Follettes decided to disband the party, and to run Robert for re-election as a Republican rather than a Progressive . He was defeated in the Republican primary for the 1946 Senate elections, by Joe McCarthy . </P>

Who led the progressive movement in wisconsin where he served as governor