Speaking at a rally today for Republican presidential candidate Donald Trump, former Alaska Gov. Sarah Palin suggested that her son Track, who was arrested this week for a domestic violence incident, suffers from post-traumatic stress disorder. "I guess it's kind of an elephant in the room, because my own family -- going through what we're going through today," Palin said at the event in Oklahoma alluding to Track's arrest. "My son, a combat vet, having served in a Stryker Brigade for you all, America in the war zone; but my son, like so many others, they came back a bit...