Of course he can. And he must, as the chief law enforcement magistrate, by defending the authority of the Constitution. He has legally identified them as illegals who never pursued due process of legal immigration, and he has identified them as a threat to the public safety, and as members of a proven, rebellious, lawless, invading, predatory criminal enterprise.
CONSTITUTION Article I Section 9 Clause 2
Habeas Corpus
The Privilege of the Writ of Habeas Corpus shall not be suspended, UNLESS when in Cases of Rebellion or Invasion the public Safety may require it.
Catherine Austin Fitts compiled the following suggestions for an active citizenry to secure their financial transactional freedom. No American can wait for the overwhelmed new administration to do everything from the top:
"Here are actions that each of us can take:
1. USE CASH whenever possible—and let everyone know why you are using cash. Walk out on establishments that refuse to accept cash. When using remote facilities where cash is not possible, use checks if you can. We understand from one subscriber that check companies are scrambling to fill the orders of all of the bank customers who have requested checks recently. Whether the indicator is banking statistics or anecdotal reports from our subscribers, cash use is clearly rising.
Consider organizing in groups. Note this post from Mike Yeadon/Robin Monotti/Cory Morningstar’s Telegram channel:
“I’ve been in France for three months now. Their approach to this is simply fantastic I’d like to share a bit about it.
A very well known supermarket here decided to go cashless. A group of 50 people got ...
"I ask, sir, what is the militia? It is the whole people, except for a few public officials."
-- George Mason, a Founding Father of the United States, during the Virginia Ratifying Convention on June 16, 1788, as recorded in the Debates in the Several State Conventions on the Adoption of the Federal Constitution.
"Nearly every educated English person I know under the age of forty is seeking to emigrate, having lost hope that their country has the wherewithal to pull out of its cultural and economic crisis. In Oxford recently, an American student told me, “If the ruling class here openly hated the British people, it’s hard to know what they would be doing differently.”
Rod Dreher