No, MAGA is a spiritual successor.
Populism as a political force really only gets going when things are borked.
the current maga movement happened when the american people just could no longer lie to themselves about how much things fucking sucked. It was the moment where the discontent which had been boiling up under the surface for well over 50 years finally made it over the surface of the pot.
You of course had things before it Ross perot being a good example, tea party being another but it didn't quite collense. Now its finally bubbled over.
This is just the begining, not the end.
Donald Trump and Biden will likely be the most significant presidents of our life times. Because under trump the populist uprising finally took its first forms and under Biden the establishment concentrated its power into the democratic party. This is likely the paradime we will be dealing with for the rest of our lives.