The ethics scandals roiling Washington and the subsequent erosion of support for the Republican Party have had little impact on Rep. David Dreier. The Glendora congressman and chairman of the powerful House Rules Committee appears poised to extend his quarter-century in the House of Representatives. Polls show him with a comfortable lead over Democratic challenger Cynthia Rodriguez Matthews in the predominantly Republican 26th District. His nearly $2.3 million campaign war chest, the largest among the state's congressional incumbents, dwarfs Matthews' $67,000. But despite his financial strength, political longevity and squeaky clean ethical track record, Dreier, like many lawmakers these days,...