Law enforcement officials are investigating a threat against Sen. Ted Cruz (R-Texas), who was vaulted into national prominence with his push to defund ObamaCare. A person identifying himself as Troy Gilmore Jr., posted on Twitter Friday morning: “Take down Ted Cruz, at his home” and listed Cruz’s home address in Houston. “What goes around comes around CRUZ!!” the person wrote. The author of the threat uses the Twitter handle @ArmyVet54 and identifies himself as having served in the U.S. Army and Navy. Sean Rushton, Cruz’s spokesman, said, “We’re aware of it and have alerted the proper authorities.” “I can’t comment...