Interesting commentary by EJ Dionne below. Nelson Rockefeller was a prophet. Here is another person that could have been a good President (although Johnson and Humphrey were and would have better) had extremists in his party not rebelled against him in 1964 and 1968.

https://www.washingtonpost.com/opinions/history-will-mark-how-many-republicans-shy-from-trumps-extremism/2019/02/24/e8e21514-36e4-11e9-af5b-b51b7ff322e9_story.html?fbclid=IwAR22uZ_g_oBbiZ3hdYoI2_hSBYJWCbitNDDJqCvf59Y4zAyp0sdZ4ZTUkOg&utm_term=.014ae61b1382