

I’ve never heard of that one specifically and could find no sources mentioning it online. So, I’m being up front when I say I do not know the specific answer.
Having said that, sometimes if we’re building out scenarios in our minds based on an inaccurate or flawed premise, that can also lead to flawed outcome in our logic. For instance, is it actually truly possible to get a 430 on any family member that you want … like just because? And if so, is it possible there are other extenuating circumstances that you might not be considering (ex: Trump is not a family member, none of your family members are president of the United States, etc) which could explain why things might lead to a different outcome between your family member(s) and Trump?
Having said that and given the additional context you provided (i.e. Mental Examination), I’m wondering if it’s a situation where the individual needs to be more of an immediate threat to the health / life of themselves or others before it’s applicable? Even if you did try to make that case (because I know at least some people would), it’s likely not a case where any random person can just make an accusation / report against a well-known public figure to whom they have no clear social ties and expect it to be taken seriously.
Also, this wouldn’t apply to the president of the USA, but even people who legitimately do need some kind of immediate institutionalization often can’t get it when they need it. It would be an understatement to say that the mental health facilities in this country are overwhelmed and underfunded.
The single, simple answer is the one that you don’t want to hear: There is no clean split. Bats are a large and diverse group of flying mammals just like birds are a large and diverse group of flying dinosaurs.
The simplest answer I can come up with (because it’s actually a very complicated and convoluted topic that I wouldn’t truly do just anyway) is: Most birds can fly because they are an offshoot of one group of dinosaurs (avian dinosaurs) that survived the last great extinction when their non-flying non-avian dinosaur relatives did not. Basically the ones that couldn’t fly mostly went extinct. And mammals mostly don’t fly, which is possibly because several groups of vertebrates beat them to it and essentially filled all the niches that would have been available to flying animals, kind of blocking that path for them.
Obviously that’s nowhere near the full story. There are lots of other factors at play, like some of the peculiarities of mammalian and dinosaur physiology that made one group better suited to flight than the other, ramifications of the great extinction that killed non-avian dinosaurs as well as most large animals in general and whole swaths of other species, and so on.