Radio Iowa: Iowa Sen. Chuck Grassley is championing a bipartisan bill to lower prescription drug costs for Americans over the age of 65. The Senate Finance Committee, which Grassley leads, approved the plan Thursday on a bipartisan vote. The plan faces stiff resistance from the pharmaceutical industry and from some of Grassley’s fellow Republicans. The bill calls for penalizing companies that raise prescription drug prices for seniors above the rate of inflation. It would set a yearly $3,100 limit on what Americans on Medicare would have to pay “out-of-pocket” for prescriptions.