Truman had a background in the military and politics in Missouri before becoming president. As president, he oversaw the end of WWII and beginning of the Cold War, establishing policies and organizations that defined the postwar geopolitical world such as the Marshall Plan, NATO, and the CIA. Domestically, Truman sought to continue the New Deal agenda through programs to expand civil rights, increase the minimum wage, and establish public housing. He chose not to run for re-election in 1952.