A Democratic Texas state lawmaker who was one of six to test positive for coronavirus called for Texas to reinstitute a universal mask mandate Wednesday — despite being photographed barefaced on the private plane that flew the delegation to Washington, DC last week.

“We need to follow the science here,” tweeted state Rep. Donna Howard, who tested positive for the virus along with five of her fellow high-flying Democrats between Friday and Monday. “Texas needs to change course and allow for universal mask-wearing to prevent spread of the highly contagious delta variant, esp[ecially] as children under...