The Trump administration tried to convince a U.S. appeals court Tuesday that it was justified in ending an Obama-era immigration policy that shielded hundreds of thousands of young immigrants from deportation.

From its courthouse right here in Pasadena, the 9th U.S. Circuit Court of Appeals was the first federal appeals court to hear arguments Tuesday about President Donald Trump's decision to phase out the Deferred Action for Childhood Arrivals program.

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Guest:

Steve Vladeck, professor of law at the University of Texas at Austin; he tweets @steve_vladeck