Florida's Miccosukee tribe challenges new Everglades detention facility over environmental and safety concerns, as Trump tours the 5,000-person "Alligator Alcatraz."

President Donald Trump is visiting Alligator Alcatraz, the temporary migrant detention center in Florida's Everglades, on July 1.

OCHOPEE, Fla. (AP) — The first group of immigrants were scheduled to arrive Wednesday night at a new detention center deep in the Florida Everglades that officials have dubbed “Alligator Alcatraz,” the state’s attorney general said.