And his predecessor Lewis Powell retired on June 26, 1987, well before the election began in earnest.
It took Reagan five months to nominate a replacement. That would be July 2016 if Obama follows Reagan's pattern. That would be right before the August recess and two months before the conventions.
That is no time for the Senate to prepare for confirmation hearings.
-PJ
No actually, I just looked this up. Reagan nominated Robert Bork in July 1987. And you know what happened then. The Dems just nicely rolled over and were “collegial,” saying “elections have consequences,” and confirmed Bork - not.