I was reading on Wiki that George McGovern publicly wanted to run for president in 1992, but he didn't, because of "family reasons." He said that if he ran, he would be "in to win," not just to "influence" the Democratic debate.
So, what would be the effects of a McGovern presidential campaign in 1992? I wouldn't entirely rule out a McGovern nomination. After all, there were several Democratic leaders in 1991 who believed the Dems had no chance of victory in 1992, so they probably would be alright with offering McGovern as a sacrificial lamb (again). But even then, it would be hard for McGovern to be nominated.
But let's take that direction now: What would the presidential campaign look like with Bush vs. McGovern? I won't post a map, but I will say that I can't see McGovern winning very many states (if any at all). It's safe to say, IMO, that he would lose in a landslide.
But how would this effect American politics post-92? Would McGovern be more involved in political activism afterward, and could he possibly seek a public office afterward? IDK, just throwing that out there. IMO, it would be really cool to see Senator McGovern in the '90s and 2000s, though I'm sure it's near-ASB.