This is CBS, I on the World.

I'm John Batchel.

The Supreme Court, a decision temporarily put aside with a temporary restraining order by a judge in Massachusetts.

Sounds dry.

It's not.

This is birthright citizenship and Professor Richard Epstein at the

Civitas Institute, teaching law at NYU in the University of Chicago, has written about

birthright citizenship for many months now, but here one more time, just when amateurs such as

myself thought the issue was settled by the Supreme Court by saying a federal district judge only has the authority to issue a temporary restraining order on the case in front of him, on the people represented before his court, not nationwide, has ignored that Supreme Court or has stepped around that Supreme Court decision, which I'm not sure.

Professor, a very good day to you.

I read from the report most recently at USA Today, so no particular dog in this fight.

A federal judge again barred President Trump's administration from enforcing his executive order limiting birthright citizenship nationwide after the Supreme Court restricted the ability of judges to block his policies using nationwide injunctions.

U.S. District Judge Joseph LaPlante in Concord, New Hampshire, made the ruling July 10th after immigrant rights advocates employed him to grant class action status to a lawsuit they filed seeking to represent any babies whose citizenship status would be threatened by implementation of the president's directive.

LaPlante agreed the plaintiffs could proceed as a class,

allowing him to issue a fresh judicial order blocking implementation

of the Republican president's policy nationally.

Professor, simply put, I'm flabbergasted

because I presume that the Supreme Court had the final word on these matters.

Can you help me understand what LaPlante is thinking? Good evening to you.

Yes. Well, there were some words in there which says, if this were a class action,

the outcome might be different. And once the Supreme Court put that word in the thing,

everybody said, well, now I'm making this a class action. But if you're talking about

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