On August 14, Texas Governor Greg Abbott sent a letter to the CEO of the Dallas-Fort Worth International Airport accusing two Texas airports of illegally favoring Muslim travelers. The letter (full text) said in part:
It has come to my attention that the Dallas-Fort Worth International Airport (DFW) plans to install ablution facilities for Islamic wudu washing rituals onsite. The George Bush Intercontinental Airport (IAH) in Houston has already installed one such facility and an interconnecting prayer room furnished with “copies of the Quran, prayer rugs, prayer beads and a turbah.” Unlike nondenominational interfaith chapels, these ablution facilities appear designed to single out one subset of the population for special treatment based on religion. I am unaware of either airport installing standalone facilities to meet the particular needs of the many other religious groups represented across Texas.
That is illegal. Both airports are government-owned facilities. Both the federal and state constitutions prohibit government from facilitating this sort of discrimination. Just as the government cannot favor the secular over the sacred, it also cannot favor one religious view of the sacred over all others in our “pluralistic society.” Nor may governments use private organizations as a “subterfuge” to “directly or indirectly” foster illegal discrimination more generally....
... I have already referred DFW and IAH to the U.S. Department of Transportation for investigation and enforcement....
Accordingly, this letter serves to notify you that any development, provision, or continued operation of such exclusionary religious spaces in government-owned facilities violates state and federal law and the terms of any grant agreements between the State of Texas and your organizations. Engaging in these discriminatory practices will subject any organizations found to be in violation to the withdrawal of grant funding and other enforcement actions.
Texas Tribune reports that the Dallas-Fort Worth Airport cancelled its plans after receiving the letter.
On August 14, Governor Abbott also sent a letter (full text) to U.S. Department of Transportation Secretary Sean Duffy asking the DOT and the FAA to take enforcement action. Then on August 21, Governor Abbott sent a letter (full text) to U.S. Attorney General Todd Blanche and the head of DOJ's Civil Rights Division referring the matter to the Justice Department. The letter says in part:
Airports can no more offer Muslim-only bathroom spaces than they can maintain white-only bathrooms. Your office has authority to investigate and put a stop to these discriminatory practices.
The Governor's Office issued a press release announcing the referral to the Justice Department.