The New Deal transformed American politics by expanding the role of the federal government in the economy and society. It introduced significant social welfare programs and regulatory reforms to stabilize the economy during the Great Depression. This shift fostered a stronger relationship between the government and citizens, and laid the groundwork for the modern welfare state. Additionally, it altered party alignments, bringing labor unions and minority groups into the Democratic Party, while redefining the Republican Party's stance. Overall, the New Deal reconfigured the political landscape, emphasizing government intervention in economic affairs.