> Francisco Galicia told his mother, who lives in Edinburg, that he was detained because he didn’t have his U.S. passport. But she said he did present CBP with his Texas ID.

By this standard, I suspect at least half the US population could be rounded up and held unconstitutionally:

https://travel.state.gov/content/travel/en/passports/after/p...

The article doesn't give much to go on regarding details of th case. FWIW, the idea that being born on US soil makes you a citizen (as plainly stated in the 14th amendment) appears to still be controversial:

https://en.m.wikipedia.org/wiki/Birthright_citizenship_in_th...