Sarah Palin is now the Republican nominee for vice president.  She has never done an interview as a national candidate. Yesterday, sassy muckraker Matt Drudge reported that Oprah Winfrey, an Obama supporter, has refused to have Palin on her show. He posted this item: BIG DILEMMA: OPRAH BALKS AT HOSTING SARAH PALIN; STAFF DIVIDED Fri Sep 05 2008 08:55:46 ET...