Dozens of Wesley Clark supporters boarded a bus this afternoon, to canvas South Carolina neighborhoods. Clark`s wife, Gert, greeted each one of 30 Arkansans making the 17-hour trip to the state to drum up support for Clark. The retired general is taking a break from the campaign to make a trip to the Netherlands. He`s testifying Friday in the war crimes trial of former Yugoslav President SLobodan Milosevic. Clark led the bombing campaign to drive Milosevic out of Kosovo, as the supreme commander of NATO in 1999.