the world. i'm wolf blitzer. you've in "the situation room." >> this is cnn breaking news. >> we are following breaking news on what appears to be a deliberate and politically motivated shooting attack on members of congress. heavily armed gunman opening fire this morning on a republican lawmakers and staffers as they practice for a charity baseball game in a quiet neighborhood just outside washington, d.c. the barrage of gunfire, captured on video. [ gunshot ] [ gunshot ] tonight, the house majority whip, steve scalise, the fbi clarifying a short while ago that three other people were shot, two others suffered secondary injuries.