Why did former President Trump befriend Herschel Walker, a man with self-acknowledged dissociative identity disorder (multiple personality)?

Their initial connection was that Walker played football for a team in which Trump had a financial interest, but that does not explain the length and depth of their association, including Trump’s endorsement of Walker to be a United States Senator from Georgia.

I would guess that Walker, at least occasionally, showed some of multiple personality’s idiosyncrasies, but that Trump, for some reason, had been comfortable with them.

Of course, Walker probably tried to hide, and divert attention from, any such idiosyncrasies, as most successful multiples do. But since Walker published a book on his dissociative identity disorder, Trump must have been well aware of it. So the question remains as to whether Trump was comfortable with Walker, because he had similar idiosyncrasies.

Since I don’t know either man, I can’t answer the question. And, in any case, people with multiple personality can be very successful.

Added Dec. 7 st 9:13 a. m.: People with multiple personality trait—not the disorder—can be very successful. The difference is that "disorder" implies it is giving the person clinically significant distress and dysfunction. People with the disorder can be very successful if therapy, time, or situational changes cure them or reduce their distress and dysfunction to clinical insignificance.