Donald Trump’s showdown with the courts reached a new level this week when it appeared that the US government defied a judge’s order blocking the deportation of hundreds of Venezuelan migrants. 

The US president invoked the 1798 Alien Enemies Act to send alleged gang members to El Salvador where they’re being held in a harsh prison. 

It seems that planes were in the air when the judge made the ruling, so why weren’t they turned around? 

Today, what happens if the Trump administration ignores the courts.

Ilya Somin, law professor at George Mason University, on the risks of a constitutional crisis in the United States. 

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Ilya Somin, Professor of Law at George Mason University in Virginia and the B. Kenneth Simon Chair in Constitutional Studies at the Cato Institute