Despite promises from Senate Majority Leader Harry Reid (D-Nev.) that Sen. Arlen Specter (Pa.) would retain his seniority after switching parties, Specter will be put at the end of the seniority line on all his committees but one under a resolution approved on the floor late Tuesday. Under the modified organizing resolution, Specter will not keep his committee seniority on any of the five committees that he serves on and will be the junior Democrat on all but one — the chamber’s Special Committee on Aging. On that committee, he will be next to last in seniority. As a result,...