Gov. Greg Abbott announced via Twitter Saturday that he is now testing negative for COVID-19, four days after testing positive though asymptomatic. “I am told that my infection was brief and mild because of the vaccination I received. I will continue to quarantine as recommended by doctors,” Abbott said. “And I will keep working on issues affecting Texas.” Meanwhile, the battle over masks continues, with growing numbers of school districts from Longview to San Antonio ignoring the governor’s ban on mask mandates. The Texas Supreme Court last week temporarily cleared the way for districts to require masks, but only on a technicality. The ...