Nina Totenberg

21 attorneys general from red states are supporting that view.

Among them is Kansas Attorney General Chris Kobach.

He notes that under TPS, some of the 17 countries that have been designated as too dangerous to go back to have been on the list for more than a decade.

So what's the counter argument?

Lawyers for the TPS recipients counter that the Trump administration has failed to comply with the procedures mandated under federal law.

They point to then Secretary of Homeland Security Christine Noem's finding that even if Haiti is unsafe for them to return to, allowing them to stay here is, quote, contrary to the national interest.

The Haitians with TPS status prevailed in the lower courts on a preliminary basis, but the Supreme Court has been critical of lower courts for stepping outside of their lane in immigration cases, and the court has consistently deferred to the administration's judgments.

In 1990, Congress enacted a law to establish criteria for selecting, processing, and registering those eligible to remain in the U.S.

with vetting and renewal required every 18 months.

Currently, 17 countries are designated as covered under the law, but the Trump administration is trying to do away with it,

maintaining that under the explicit terms of the statute, its actions simply are not subject to review by the courts.

Nina Totenberg, NPR News, Washington.

Geofencing allows police and prosecutors to draw a virtual fence around a large geographic area where a crime was committed.

After that, the government seeks a warrant requiring a tech company, in this case Google, to search its data to identify any of its millions of users who were within the geofence line at the time of the crime.

In the last analysis, the question facing the justices today is whether that technique is ingenious or well in or both, and ultimately whether it's constitutional.

Nina Totenberg, NPR News, Washington.

By a 9-8 vote, the appeals court reinstated the law, the first of many similar efforts that until now have been blocked by other federal courts on grounds that they violate Supreme Court precedent and bridge the constitutional wall separating church and state.

A group that represents 15 Texas families of various faiths say they plan to appeal to the U.S.

Supreme Court.

In 1980, the high court ruled a similar law unconstitutional—