SAN ANTONIO San Antonio Mayor Ron Nirenberg is part of a group of Texas mayors asking Gov. Greg Abbott for the authority to set rules and regulations on the use of face coverings in each of their cities. Nirenberg and eight other Texas mayors, including Sylvester Turner from Houston, Steve Adler from Austin and Eric Johnson from Dallas, signed a letter on Tuesday addressed to Abbott that read in part:A one-size-fits-all approach is not the best option. The letter thanked Abbott for his leadership and for helping the economy recover, but feared an influx of new cases could overwhelm the states hospital system. Texas reported at least 2,622 new COVID-19 cases on Tuesday.