Articles relating to the Reagan Era (1980-), a periodization of recent American history used by historians and political observers to emphasize that the conservative "Reagan Revolution" led by President Ronald Reagan in domestic and foreign policy had a lasting impact. It overlaps with what political scientists call the Sixth Party System. Definitions of the Reagan Era universally include the 1980s, while more extensive definitions may also include the late 1970s, the 1990s, the 2000s, the 2010s, and even the 2020s.