Wednesday, July 2, 2003 10:23 a.m. EDT Former NATO Commander Gen. Wesley Clark said Tuesday that he hadn't ruled out running for president as a Republican. Clark hails from Arkansas and was appointed to head NATO by Democrat president Bill Clinton, who praised him last week as someone who would make a good chief executive. But Clark refused to be pinned down on his party affiliation during the following exchange with Fox News Channel's "Hannity & Colmes" co-host Sean Hannity: HANNITY: All right, I want a straight answer. I was watching you on Russert a couple of Sundays ago. You...