Farmers had enjoyed a period of prosperity as U.S. farm production expanded rapidly to fill the gap left as European belligerents found themselves unable to produce enough food.
Worse, hundreds of thousands of farmers had taken out mortgages and loans to buy new equipment and land to expand and were now unable to meet the financial burden.
[1][2] A plan suggested by George Peek and Hugh S. Johnson, of the Moline Plow Company, called for new tariffs to protect farmers from foreign producers and a federal program for price supports.
Wallace and Henry C. Taylor, head of the Bureau of Agricultural Economics, rallied behind the plan, which formed the basis for the bill introduced by McNary of Oregon and Representative Haugen of Iowa, both Republicans.
Gleason (1958) shows that most leading businessmen opposed the bill on the grounds that it was contrary to economic law and would cost money and involve the government in business.
Hoover advocated the creation of a Federal Farm Board, which was dedicated to restriction of crop production to domestic demand, behind a tariff wall, and he maintained that the farmer's ailments were because of defective distribution.
He was pleased by enactment of the Agricultural Marketing Act in the Hoover administration but cited its lack of provisions for checking overproduction, and he wrote hard-hitting editorials against the Hawley–Smoot Tariff, which passed in 1930.
Though the legislation ultimately failed, twice in Congress and twice by presidential veto, the adoption of the idea by mainstream farm organizations laid the groundwork for farmer support of New Deal farm policy, where they applauded Roosevelt's appointment of Peek and Johnson, authors of the McNary–Haugen plan, as well as advocate Wallace Jr. to powerful positions, where they began large-scale subsidy programs.