WASHINGTON (CNN) — Former President George H.W. Bush has shot down his successor Bill Clinton’s idea of a diplomatic mission under a Hillary Clinton presidency that would send him and other notables abroad to assure other nations that “America is open for business and cooperation again.” The move came one day after Bill Clinton made the suggestion on the campaign trail in South Carolina, in response to a question from a supporter about his wife’s “number-one priority” upon reaching the White House. -snip-