That would be Franklin Delano Roosevelt. In 1932, Hoover and Roosevelt were competing in the presidential elections. Hoover, a Republican, had already served as president from 1929 to 1933, and he was beaten in 1932 by Roosevelt, a Democrat. Hoover was president during the Great Depression, which Roosevelt blamed him for because of the state of America before and after it.
The system of government by privileged citizens or the upper class is called an "aristocracy," with the leaders in question usually having the most money of anyone in the society as well.