The correct answer is D) His programs led to an expansion of the role of the federal government.
FDR's most significant contribution to American politics was "His programs led to an expansion of the role of the federal government."
US President Franklin D. Roosevelt started his first period as President in 1933. His priority was to offer some relief to the American citizens that had suffered so much during the Great Depression years. So he created a series of programs called "New Deal," in which the federal government invested a lot of money to help poor people that had lost their jobs after the US stock market crash of October 29, 1929. The basis of some of those programs served as the foundation of social programs that are active today.
mercantilism, economic theory and practice common in Europe from the 16th to the 18th century that promoted governmental regulation of a nation's economy for the purpose of augmenting state power at the expense of rival national powers. It was the economic counterpart of political absolutism.
These similarities suggested that people who supported the Populist Party in the 1890’s were part of small organizations and small farms that were against big businesses.