The Supreme Court struck down the Agricultural Adjustment Act in the 1936 case "United States v. Butler". Wallace strongly disagreed with the Court's holding that agriculture was a "purely local activity" and thus could not be regulated by the federal government, saying, "were agriculture truly a local matter in 1936, as the Supreme Court says it is, half of the people of the United States would quickly starve." He quickly proposed a new agriculture program designed to satisfy the Supreme Court's objections; under the new program, the federal government would reach rental agreements with farmers to plant green manure rather than crops like corn and wheat. Less than two months after the Supreme Court decided "United States v. Butler", Roosevelt signed the Soil Conservation and Domestic Allotment Act of 1936 into law. In the 1936 presidential election, Wallace was an important surrogate in Roosevelt's campaign.