Populist movement: a politically oriented group of agrarian farmers in the Middle west and south that wanted a wider range of economic and political legislation in the late 19th century (1800's)
The Populists aspired to become a national party and hoped to attract support from labor and from reform groups generally. In practice, however, they continued through their brief career to be almost wholly a party of Western farmers. (Southern farmers, afraid of splitting the white vote and thereby allowing blacks into power, largely remained loyal to the Democratic Party.) The Populists demanded an increase in the circulating currency, to be achieved by the unlimited coinage of silver, a graduated income tax, government ownership of the railroads, a tariff for revenue only, the direct election of U.S. senators, and other measures designed to strengthen political democracy and give the farmers economic parity with business and industry. In 1892 the Populists nominated Gen. James B. Weaver of Iowa for president.
Progressive Movement: The Progressive Party was a third party in the United States formed in 1912 by former President Theodore Roosevelt after he lost the presidential nomination of the Republican Party to his former protégé, incumbent President William Howard Taft. The new party was known for taking advanced positions on progressive reforms and attracting some leading reformers. After the party's defeat in the 1912 presidential election, it went into rapid decline, disappearing by 1918. The Progressive Party was popularly nicknamed the "Bull Moose Party" since Roosevelt often said that he felt "strong as a bull moose" both before and after an assassination attempt on the campaign trail.
The progressive platform wanted to get rid of the so called "unholy alliance between corrupt business and corrupt politics".