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.
...there was a sober silence in the room. Samuel Adams, a key figure in the American Revolution and a signer of the Declaration of Independence, spoke up to say,
“We have this day restored the Sovereign to Whom all men ought to be obedient. He reigns in heaven and from the rising to the setting of the sun, let His kingdom come.”
Colonel Douglas MacGregor predicts a continuation of the Iran war soon, once all sides have replenished missile stocks.
"Washington’s political class manifests much less regard for the long-term strategic interests of its own citizens—their security and prosperity. As a result, Washington pays an exorbitant price in reputation and treasure for policies that confront Palestinians with the choice of death or expulsion from their homelands.
"Assumptions of tacit acceptance or rapid capitulation are implicit and dangerous.
[The Muslims will not 'do a deal.']
"When Hitler was briefed on the expected Soviet reaction to Operation Barbarossa, Major General Ernst Koestring, a Prussian officer fluent in Russian from a family that had lived in Moscow since the reign of Catherine the Great, advised: “Initially, German forces will advance rapidly. The various peoples on the Soviet periphery will likely welcome the German forces. Resistance will be weak. But when the Germans advance into ...