Former GOP state chairman Kevin Mannix made it official Thursday, entering the race for the Oregon congressional seat being vacated by Democrat Darlene Hooley. Mannix will have to fight for his party's nomination against Mike Erickson, a wealthy businessman from Lake Oswego who ran against Hooley in 2006. On the Democratic side, a primary contest is set between state Sen. Kurt Schrader and political consultant Steve Marks. Some unions have also been quietly floating the idea of a run by Jim Hill, the former state treasurer who ran for governor in 2006. Mannix represented the city of Salem in the...