Mezue ahịrịokwu na-esonụ: Ọchịchị Ronald Reagan dị ka onye isi ala nke 40 nke United States were site na
nke mbụ ya na Jenụwarị 20, 1981, ruo Jenụwarị 20, 1989. Reagan, onye Republican si California, malitere ọrụ ya mgbe o merisịrị onye isi oche Democratic Jimmy Carter na ntuli aka ndị isi ala nke 1980. Afọ anọ ka e mesịrị, na ntuli aka nke 1984, o meriri onye Democrat Walter Mondale iji merie ntuli aka ọzọ na nnukwu mmeri. Onye nọchiri Reagan bụ osote onye isi ala ya, George H. W. Bush, onye meriri ntuli aka onye isi ala nke 1988 site na nkwado Reagan. Nhọrọ Reagan mere n'afọ 1980 bụ nsonaazụ nke mgbanwe dị egwu nke ndị na-eme ihe ike na ndọrọ ndọrọ ọchịchị America, gụnyere enweghị ntụkwasị obi na mmemme na ihe ndị dị mkpa nke ndị nweere onwe ha, New Deal, na Great Society nke na-achịkwa usoro ihe omume mba ahụ kemgbe 1930s.