Upon taking office, President Franklin Delano Roosevelt tended to see a necessity for the United States to participate more actively in international affairs, but his ability to apply his personal outlook to foreign policy was limited by the strength of isolationist sentiment in the U.S. Congress. In 1933, President Roosevelt proposed a Congressional measure that would have granted him the right to consult with other nations to place pressure on aggressors in international conflicts. The bill ran into strong opposition from the leading isolationists in Congress, including progressive politicians such as Senators Hiram Johnson of California, William Borah of Idaho, and Robert La Follette of Wisconsin. In 1935, controversy over U.S. participation in the World Court elicited similar opposition. As tensions rose in Europe over Nazi Germany’s aggressive maneuvers, Congress pushed through a series of
Neutrality Acts, which served to prevent American ships and citizens from becoming entangled in outside conflicts.