Sarah Palin may not be your huckleberry when it comes to the presidency but she came to town the other night and proved once again what has been undeniable for some time: She has more political appeal than anyone on the scene with the exception of Barack Obama. The former Alaska governor and last year's much maligned GOP vice presidential nominee and now author showed up at one of the toughest venues in town -- as the Republican speaker at the winter dinner of the venerable Washington Gridiron Club, a bastion of opinion makers who over 125 years have roasted...