On the domestic front, after a short transition, the economy grew rapidly, with widespread prosperity, rising wages, and the movement of most of the remaining farmers to the towns and cities. Politically, the era was dominated by liberal Democrats who held together with the New Deal Coalition: Harry Truman (1945–1953), John F. Kennedy (1961–1963) and Lyndon Johnson (1963–1969). Republican Dwight D. Eisenhower (1953–1961) was a moderate who did not attempt to reverse New Deal programs such as regulation of business and support for labor unions; he expanded Social Security and built the interstate highway system. For most of the period, the Democrats controlled Congress; however, they were usually unable to pass as much liberal legislation as they had hoped because of the power of the Conservative Coalition. The Liberal coalition took control of Congress after Kennedy's assassination in 1963, and launched the Great Society.