Not that there is any serious question about this, but Trump benefited from the debate because he frowned during Biden’s disastrous performance.
Trump’s frown was not just any frown. It was not a frown that expressed mere disapproval of Biden’s answers; to the degree Biden’s answers were coherent at all.
No.
Trump’s frown was disapproval at the existence of Joe Biden.
Which means that Trump’s frown represented the sentiments of the entire country towards Joe Biden’s debate performance.
Indeed, it was a frown that expressed the sentiments of the entire planet, a frown that belongs on Mount Rushmore for all eternity.
With that frown alone Trump expressed everything that needed to be said (without speaking) about why Joe Biden must be voted out.
Pragmatically Distributed 