During the August recess, congressional Republicans heard plenty from constituents about the prescription-drug bill — all of it bad. Liberals and the AARP have ginned up opposition to the bill as too stingy. Conservatives say it costs too much. And everyone worries that the bill will give many seniors worse coverage than they already have. The administration has long recognized this last point, but argued that under current trends people were going to lose their drug coverage anyway. But this response never made much political sense. Put yourself in the place of a congressman. Your constituents are going to lose...