Trump a bottom 5 president

Now that reputable historians are ranking Trump as one of the 5 worst presidents of all time, I wonder about those folks who are ranking him as the best or in the top 5. Was that the same for other "worst presidents" - Andrew Johnson, James Buchanan, etc? were there people in their era that thought they were great presidents? Just trying to figure out if this "Trump is great" phenomenon will fade in a few years...