Why do MAGA supporters say neither Trump nor Lindsay Clancy is mentally ill?

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Despite the fact that Trump exhibits substantial signs of mental illness and his behavior is very dangerous, he gets a pass from MAGA on the behavior, and they are not willing to admit that there is anything wrong with him. Lindsay Clancy, on the other hand, gets no pass at all, but MAGA, in its wisdom, is convinced that there is absolutely nothing wrong with her. Why is MAGA completely unable to assess whether or not there's something wrong with someone?
Why do MAGA supporters say neither Trump nor Lindsay Clancy is mentally ill?
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