Describe a McGovern 1972/Reagan 1980 voter

[Vosem]

America swung 13 points left between 1972 and 1980, from 61-38 R in 1972 to 51-41 R in 1980. Here's the state-by-state swing map:

Reagan actually gained in much of the Southwest, particularly California (!!). Much of the swing against him was concentrated in the South, where totally insane 40-point swings were basically routine.