HARRISBURG -- Republican State Treasurer Barbara Hafer will do it again. Hafer will announce next week her support for Democrat Dan Onorato in the Allegheny County chief executive race. Hafer, 60, of Elizabeth, shocked the political establishment in September 2002 with her endorsement of Democratic gubernatorial nominee Ed Rendell over Republican Attorney General Mike Fisher of Upper St. Clair. She later co-chaired Rendell's transition team and headed his finance committee. Hafer is expected to announce her endorsement of Onorato in Pittsburgh Tuesday morning and then travel to McKeesport for another event on Onorato's behalf. Hafer declined several requests for interviews...