Neurologist says Biden exhibited "progressive kind of aphasias and degeneration of word-finding" difficulties.”
That is not a bad night and nothing to do with a cold.
https://www.newsnationnow.com/politics/debates/biden-word-finding-difficulty-debate-neurologist/Anomic aphasia can be present in otherwise fluent people, but Biden showed signs of a more generalized aphasia.
Also, "expressed concerns about Trump’s “narcissism and perpetual lying essentially and an exaggeration,” which fall into a realm of personality disorders."
"Personality disorders are a form of mental health condition in which people regularly suffer from inflexible and unhealthy thought patterns that affect the way they behave and function in everyday settings. ... people with these types of disorders see their way of thinking as normal and tend to blame others for the challenges they face, maybe feeling constantly victimized."
"Cluster B personality disorders lean toward dramatic characteristics like overly emotional or severe, erratic, or unpredictable behavior and thinking.
There are 4 different Cluster B personality disorders:
Antisocial Personality Disorder
Narcissistic Personality Disorder
Histrionic Personality Disorder
Borderline Personality Disorder
"Narcissistic Personality Disorder"
Arrogant expectation of adoration and constant praise despite the failure to even notice the needs and feelings of others
Jealousy of others or the preconception that others are jealous of you
Often exaggerates past accomplishments, relationships, or abilities
Convinced that they are better than others and have fantasies of great success, power, and influence."
https://www.ororecovery.com/personality-disorders-and-clusters/