Reagan probably would have primaried him. You might see an earlier Conservative Revolution if he can win the general.
That assumed Reagan overcomes problems like the Iranian Hostage Crisis and the Soviet Invasion of Afghanistan better than Carter. If he did not, there is room for a radically different 1980s. People focused on politics will forget that the 1980s is where today’s social liberation, especially
sexual liberation, really began. A socially very liberal Democrat ruling in the 1980s would make for a very different America today.