How did Franklin Roosevelt's election as president change the way the U.S. government responded to the Great Depression?
The government became more involved in the economy
FDR increased the size of the federal government. He created agencies such as the NRA or the AAA launched by eponymous laws. Demorats had nicknamed Hoover "Do nothing" for what they considered his lack of action. The New Deal remains the most emblematic policy of the thirties and it came about under the impulse of FDR.
Workers were finally given protection with the Social Security Act of 1935 and the right to go on strike was finally guaranteed by the 1935 Wagner Act
Some historians contest this vision and claim Hoover was already a statist who used the federal government in order to fix the crisis.