The US has an official language. It is English. See https://www.whitehouse.gov/presidential-actions/2025/03/desi....
"To promote unity, cultivate a shared American culture for all citizens, ensure consistency in government operations, and create a pathway to civic engagement, it is in America’s best interest for the Federal Government to designate one — and only one — official language. Establishing English as the official language will not only streamline communication but also reinforce shared national values, and create a more cohesive and efficient society.
Accordingly, this order designates English as the official language of the United States."