Despite them trying their damnedest to keep him out of the public eye, it's still almost impossible to believe people could watch him speak and not realize something was wrong.
Once just once I want to see a thread about some of Biden's shortcomings where the top comment isn't some knee-jerk "well trUMP IS EVEN WORSE!!1"
Also
Trump is in obvious decline before even starting his term
Read: "during first months" meaning "after spending more time with him," not that Biden decline accelerated during that time, but that the extent of it became more apparent as time went on.