Ronald Reagan served two full terms.
Ronald Reagan . Over his two terms , the economy saw a reduction of inflation from 12.5 % to 4.4 % , and an average annual growth of real GDP of 3.4 ; while Reagan did enact cuts in domestic discretionary spending , tax cuts and increased military spending contributed to increased federal outlays overall , even after adjustment for inflation . He was the first president since Dwight D. Eisenhower to serve two full terms , after a succession of five prior presidents failed to do so .