Declaration of war by the United States

Across Arizona Tours, a Phoenix-based tour operator, has filed a lawsuit against the Trump administration challenging higher national park entrance fees charged to international visitors. The suit, filed with representation from the Pacific Legal Foundation, argues the fees are "unprecedented and unlawful" because only Congress can authorize federal fees, and no such authorization exists for charging nonresidents more than U.S. citizens.

The nonresident surcharge, which took effect in January following a 2024 executive order from President Trump, adds $100 per person to the standard $20-$35 Grand Canyon entry fee, or $250 for an annual pass compared to $80 for U.S. residents. The company says the fees, along with residency-verification requirements some customers find invasive, have driven away potential international tourists and hurt its business. The lawsuit seeks to eliminate the nonresident fees and pass entirely. Supporters of the policy argue it ensures foreign visitors help fund park upkeep, similar to practices in other countries.