What results would have changed if there was no turnout change?

[Karpatsky]

...is the poorly-phrased version of the question which I could fit into the title limit. What I wanted to write was this:

Which US election results might have been different if only people who voted in the last election could vote?

In other words, which candidates won by swinging voters in the center, and which won by bringing in voters who didn't vote often before?

I think potentially 2016 and 1992 qualify.