See how Amy Coney Barrett, Trump nominee from Louisiana, voted on his tariffs

Louisiana native Amy Coney Barrett was among the six U.S. Supreme Court justices who Friday struck down President Donald Trump’s sweeping international tariffs.

The court ruled 6-3 that Congress, not the president, has the authority to levy tariffs. And it rejected the Trump administration’s claims that the tariffs were legal because of “emergencies” over an influx of drugs from other countries and large trade deficits.

Barrett, who grew up in Metairie and graduated from St. Mary’s Dominican High School in New Orleans, was nominated by Trump. She and two other Republican-appointed justices — Neil Gorsuch, another Trump appointee, and Chief Justice John Roberts, appointed by President George W. Bush — ruled the tariffs unconstitutional. Also in the majority were the court’s three justices appointed by Democrats — Sonia Sotomayor, Elena Kagan and Kentanji Brown Jackson.

The three other Republican-appointed justices, Samuel Alito, Clarence Thomas, and Brett Kavanaugh, dissented.

The ruling undermines one of Trump’s signature economic policies. The president argued the U.S. was getting bad deals with other countries on trade, and the tariffs were necessary to restore fairness.

But critics argue the tariffs have driven up prices, alienated allied countries and caused havoc in global supply chains.

The U.S. has collected more than $133 billion from the import taxes the president has imposed under the emergency powers law, federal data from December shows. Many companies, including the big-box warehouse chain Costco, have already lined up in court to demand refunds.

Republicans swiftly condemned the court’s ruling.

“It’s disappointing to see the Supreme Court strike down President Trump’s tariff’s,” Louisiana Gov. Jeff Landry wrote on X. “The people overwhelmingly elected @realDonaldTrump because he promised to put America First.”

Landry continued: “There can be no free trade without fair trade. I’m confident the President and his team will continue to fight for a stronger economy that best serves our Nation and her people.”

The Associated Press contributed to this report.