Democratic debates 2019: Texas state representative Briscoe Cain tweets at Beto O'Rourke that his AR-15 "is ready for you"
12:43am PDT - September 13th, 2019 beto o'rourke - CBS NewsO'Rourke called tweet, which came during Democratic debate, a death threat, and Twitter later removed it, saying it broke site's rules on threats and violence