text: In 1956, Eisenhower won +15.4
  In 1964, LBJ won +22.6
  In 1972, Nixon won +23.2
  In 1984, Reagan won +18.2
  In 1988, Bush Sr. won +7.8
  In 1996, Clinton won +8.8
  In 2004, Bush Jr. won +2.4
  In 2008, Obama won +7.2
  In 2020, Biden won +4.5
  Trump won by ONLY +1.6