Anyone who wasn't born in the US "came here under a visa" of some sort. According to this, they can have that visa retroactively revoked, regardless of their current legal status? (citizenship, green card...)
The caliber of people getting these jobs, officials, spox, even in court, are so completely unprepared for anyone to even kind of push back on their hogswollop. This government could be humiliated to the point of destruction on broadcast by pointed followup questions
So every university in a democratic country must now warn students going to the US it is an authoritarian state. Say nothing and do nothing that might be interpreted as commentary on the state and especially its autocrat
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The problem is that they want to be the only arbiters of that decision, reject having to provide a rationale & insist the courts have no jurisdiction.