I read Bill Barr's book recently. Trump wanted to do an executive order to remove birthright citizenship. But the Office of Legal Counsel wrote an analysis that Trump couldn't do it by executive order, so Trump dropped it. Barr also personally explained to Trump that the proposed executive order would've raise difficult questions about people who were already born here to illegal immigrants or foreign nationals: do you rescind their citizenship (is that even possible)?
If Trump understood that he couldn't do it then, then why does he think he could do it in a 2nd term?
Birthright citizenship really needs to end. No other major developed country does it. But Congress has to pass another amendment to get rid of it
Trump does not think logically. He's clearly mentally disabled.