Source?
https://www.washingtonexaminer.com/news/michelle-obama-compares-america-to-child-from-a-broken-family-under-trump-leadership
I'm guessing he's referencing that and while I think it's a bad analogy, I didn't draw the same conclusion of her bashing all divorced fathers that Volo did.
Also, regarding the dumping of illegals in sanctuary cities, it seems like something that's scarier to his base than it would be to those cities. But as others have already said it seems legally dubious.