I think in a realistic what if on Wallace getting the nomination, he would have gotten Alabama, Mississippi, Arkansas, Georgia, Lousiana, and South Carolina. I think he would have done much better than McGovern electorally, but worse elsewhere. Ironically, I think electorally, he was the democrats best bet in 1972, but in the popular vote, he might have been the worst. So depending on which end you are looking at, he would have represented two ends of the spectrum
I'm pretty sure someone like Humphrey or Muskie could have produced a map similar (if somewhat worse) than 1968.
