Suppose that a Democrat is elected President in 1988. (It doesn't have to be Dukakis. It could be Gore, Gephardt, and anyone else who failed in the primaries or didn't run IOTL). Does Ross Perot still run for President in 1992 (or 1996 for that matter)? If so, does he run as an independent or as a Republican? How does the 1992 election play out with or without Perot?