collar workers here, clinton's showcasing her running mate, senator tim kaine, and her husband, former president bill clinton, who carried both ohio and pennsylvania twice. she's also touring factories to highlight american-made products and showcase companies hiring locally rather than overseas. >> we know better than to believe anyone who says, "i alone can fix it." right? those were actually donald trump's words at the republican convention in cleveland last week. >> reporter: the three-day tour is designed to block donald trump's path to 270 electoral votes needed to win the presidency. but as the stronger together tour began, it was revealed friday the f.b.i. is investigating yet another illicit hack of a server used by democrats. the clinton campaign said a "data program maintained by the democratic national committee and used by our campaign was