A Washington, D.C. man has filed a federal lawsuit against the Centers for Disease Control and Prevention (CDC), President Joe Biden, and several other agencies, challenging the mask mandate on transportation systems. Lucas Wall, who describes himself as a “frequent traveler,” argued in his lawsuit (pdf) that having to wear masks on transportation systems is unconstitutional, particularly while traveling within a state. “They are improper, illegal, and unconstitutional exercises of executive authority,” Wall wrote. Wall, who is fully vaccinated against COVID-19, was turned away June 2 by Transportation Security Administration agents at Orlando International Airport when they saw he wasn’t wearing a mask. “No, I will not wear a mask, that’s why I have my vaccination card,” Wall told an agent. That agent then told Wall that he needed a mask to fly from Orlando to Ft. Lauderdale. Wall refused to wear a mask, saying that he suffers from anxiety …