It takes about a month to die from Covid-19, if you are going to die. From the White House Lawn Mass Extinction Event, that would put him in a box around the end of September. I wonder who the RNC would enlist to run, if they only had a month?

Of course, that's assuming he caught it there. A much more likely scenario is for the virus to bounce around GOP bigwigs for a while before it gets to Trump. It's really really good at that.