Progressive Rep. Greg Casar, D-Texas, a new member of the "The Squad," faced waves of mockery on Twitter about his "thirst strike" protest lasting less than 10 hours. "Yesterday was incredible. I was honored to be joined at my thirst strike by workers in Texas and across the nation - and by lots of colleagues pushing for federal heat safety protections," the congressman tweeted Wednesday. "9 hours without water or food, but I’m more energized than ever to get this done." Many commentators across Twitter saw the demonstration as far less of an achievement, with some claiming the premise of...