Back to the point of the thread....
If Melania can't take it, she needs to toughen up. That is the world of US politics. And if they go after her child, she needs to level them.
If, on the off chance, Barron does have a disability, the family should be open about it. I understand liberals can attack hatefully attack people with disabilities and think they get away with it. I would openly say, "Yes, my child has such-ans-such issue. Anybody got a problem with that?"
If she can't take the heat, her attackers will only become more brazen.