Amy Held

More than 50 million people in the eastern U.S.

are in the path of a powerful winter storm that could drop up to two feet of snow in parts.

In New York City, Mayor Zoran Mamdani is instituting a travel ban, starting at 9 this evening and ending at noon tomorrow.

Meteorologist Brian Jackson says this weather makes it hard to see.

Already, FlightAware is reporting some 6,000 U.S.

flight disruptions so far today.

U.S.

businesses facing new tariff uncertainty.

They've paid billions and made adjustments to offset costs.

Now the Supreme Court struck down President Trump's tariffs imposed under emergency powers.

He has vowed to work around the ruling to keep tariffs in place, saying they help boost American manufacturers and reduce the trade gap.

France has summoned the U.S.

ambassador after he weighed in on a delicate topic.

NPR Eleanor Beardsley reports from Paris.

Eleanor Beardsley, NPR News, Paris.

After at-home COVID tests popularized the use of saliva to diagnose illnesses, more companies are looking for similar tests for other diseases like cancer.

NPR's Yuki Noguchi reports.

This is NPR News.

In Iran today, students are participating in anti-government protests on campuses for a second day this weekend, leading to clashes at universities.

This, according to local news agencies and social media posts.