Thursday, July 8, 2004 5:23 p.m. EDT AP Poll Rocks Kerry Camp: Bush Opens Leads Despite Edwards Pick President Bush has opened up a lead over Sen. John Kerry in the latest voter survey, despite the addition of John Edwards to the Democratic ticket and 48 hours of non-stop media gushing over the selection. The new Associated Press poll, released late Thursday afternoon, shows Bush-Cheney leading Kerry-Edwards by 49 to 44 percent. The Bush lead represents a four point improvement for the president, who was trailing Kerry in the same poll before Edwards joined his ticket. That poll showed a...