Washington (CNN) – Arizona Republican Rep. John Shaddegg is retiring from Congress, a GOP source confirmed to CNN Thursday. Shaddegg, who was first elected in the 1994 GOP landslide, is the third Republican to announce retirement plans, following Rep. ...http://politicalticker.blogs.cnn.com/2010/01/14/arizona-republican-announces-retRep. John Shadegg, Republican of Arizona, is retiring at the end of this Congress. He represents a district with a Partisan Voting Index score of R+9. In 2008, local...