Amid bad press, four more staff members have left Katherine Harris' U.S. Senate campaign, for various reasons. Four more staffers have left Katherine Harris' troubled U.S. Senate campaign, which is putting an upbeat face on the reams of bad publicity that have rolled in with renewed force this week. ''We're excited,'' said spokeswoman Jennifer Marks, touting the endorsement of Florida Right to Life on Wednesday. ''We have new management, a new staff and we're energized to see the congresswoman through the election,'' she said. Over the past week, some of the staffers left without explanation, but at least one confessed...