During the Great Depression, Franklin Roosevelt asked Congress for broad executive powers to address the economic crisis similar to wartime powers. This reflected the ideology of modern liberalism, which allows some government intervention in the economy while maintaining capitalism. Advocates of classical liberalism and laissez-faire economics argue that intervention could undermine economic freedom, competition, and self-interest. However, John Maynard Keynes supported intervention to stabilize the economy. Roosevelt introduced the New Deal, increasing government involvement but still protecting individual rights and rule of law. Government intervention can help recovery from crisis as long as it does not infringe on fundamental freedoms.