STEVE EMBER: Roosevelt's policies helped to reduce the amount of human suffering. But the Great Depression finally ended only with America's entry into World War Two.

Roosevelt's victory in nineteen thirty-two also helped change the balance of power in American politics. Roosevelt brought new kinds of Americans to positions of power: Labor union leaders. Roman Catholics. Jews. Blacks. Americans from families that had come from places such as Italy, Ireland and Russia.

These Americans repaid Roosevelt by giving the Democratic Party their votes.

The nineteen twenties and thirties also brought basic changes in how Americans dealt with many of their social and economic problems.

The nineteen twenties generally were a period of economic growth with little government intervention in the day-to-day lives of the people. But the terrible conditions of the Great Depression during the nineteen thirties forced Roosevelt and the federal government to experiment with new policies.

The government began to take an active role in offering relief to the poor. It started programs to give food and money to poor people. And it created jobs for workers.

The government grew in other ways. It created major programs for farmers. It set regulations for the stock market. It built dams, roads and airports.

American government looked much different at the end of this period between the world wars than it did at the beginning. Government had become larger and more important. It dealt with many more issues in people's lives than it ever had before.