Reporting from Washington — Nancy Pelosi was a staple of Republican campaign ads in the 2010 midterm elections that led to her ouster as speaker of the House. But even out of power, the San Francisco Democrat is the featured villain in what has become the first major electoral test of 2011, a special Congressional election in western New York. The National Republican Congressional Committee's first television ad of the race in the state's 26th district, launched Monday (see below), portrays both Democratic candidate Kathy Hochul and independent candidate Jack Davis, who once ran for this seat as a Democrat but...