U.S. Commerce Secretary Howard Lutnick downplayed the impact of legal uncertainty around U.S. tariffs on negotiations with the European Union during an interview with Fox News Sunday, saying talks were ongoing.

President Donald Trump's steepest tariffs fell into legal limbo this week, casting uncertainty over a major swath of the president's signature economic policy.

The Trump administration immediately appealed that ruling, and less than 24 hours later, the appeals court said, "We're going to allow you to continue to levy these tariffs while this appeal plays ou...