It wont dissapear after the election. But the focus will change from the sky is falling to investigating why POTUS let the sky fall, did he encourage it, why didn't he do more, etc.etc. etc.? And that will happen no matter which way the virus turns out whether its the most deadly ever seen or just a strain of the flu.
If, and thats a BIG IF, the lockdowns prove out to be benificial the Guvs will holler about how many millions of lives they saved while Trump wanted to let them all die. On the other hand, when/if the data proves them to be totally useless or worse harmful they will be screaming how TRUMPS locksown killed millions, although only 100k have died. I will bet money at least HALF of the 100k died WITH covid, but not FROM covid. Big difference.