NEW : Obama vows to never question the patriotism of others in the campaign . NEW : Obama camp : ` ` Of course [ Obama ] rejects yesterday 's statement '' by Clark . He was scheduled to speak with reporters in Harrisburg before holding a town hall meeting in Pipersville . NEW : Obama camp : ` McCain unveils new campaign airplane .
NEW : Obama vows to never question the patriotism of others in the campaign . NEW : Obama camp : ` ` Of course [ Obama ] rejects yesterday 's statement '' by Clark . NEW : Obama camp : ` McCain unveils new campaign airplane .