In a letter sent late Tuesday to the heads of the Department of Homeland Security, Immigration and Customs Enforcement, and FEMA, the lawmakers expressed concern that the Trump administration's decision to use what lawmakers called a "novel state-run immigration detention model" could violate federal law and make the federal government less accountable for the conditions at immigrant detention centers.

Erected on an abandoned airstrip known as the Dade-Collier Training and Transition Airport, the temporary tent city was thrown together in just eight days after Florida authorities presented the federal government with a “marketing pitch” inspired by President Donald Trump longing for the reopening of the original Alcatraz.

Two separate lawsuits could halt operations at “Alligator Alcatraz,” the controversial makeshift immigrant detention center in Florida’s swampy Everglades.

Immigration attorneys and advocates are raising concerns about what they say are inhumane conditions at the "Alligator Alcatraz" migrant detention center.

The Miami Correctional Facility, a maximum-security prison located at the former Grissom Air Force Base about 70 miles north of Indianapolis, can house up to 3,100 people. Annie Goeller, chief communications officer for IDOC, said part of the facility has not been filled because of a staffing shortage.

Detainees at the Florida immigration facility have reportedly been on a hunger strike for several days, protesting conditions at the center.

Forget GEO Group Stadium, protesters started a movement 12-years ago to make sure another name caught on where Florida Atlantic would play: "Owlcatraz."

Alligator Alcatraz was opened as the Trump administration amped up its pursuit of people it considers to be illegally in the U.S.