MPR's Laura McCallum reports on the The Minnesota Twins nearing the end of a statewide road trip to more than 70 communities across the state. The Twins' Winter Caravan has been around for years as a way to thank fans and stir up support, but this year it's much larger than in the past…and with it concerns over the possibility of pitching a proposed new Twins stadium to captive student audiences during a school visit.