NEW : Obama vows to never question the patriotism of others in the campaign . NEW : Obama camp : `` Of course [ the Mississippi Delta ] rejects the last 16 months 's statement '' by McCain . NEW : McCain 's campaign launches CNN to defend his military record . Clark 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 : McCain 's campaign launches a Truth Squad to defend his military record . McCain unveils new campaign airplane .