FILE - In this Aug. 7, 2012 file photo, Rep. Ron Barber, D-Ariz., speaks to the media in Tucson, Ariz. As the election nears, Republicans and Democrats alike say Medicare is working to

 

              FILE - In this Aug. 7, 2012 file photo, Rep. Ron Barber, D-Ariz., speaks to the media  in Tucson, Ariz. As the election nears, Republicans and Democrats alike say Medicare is working to
FILE - In this Aug. 7, 2012 file photo, Rep. Ron Barber, D-Ariz., speaks to the media in Tucson, Ariz. As the election nears, Republicans and Democrats alike say Medicare is working to their political advantage in campaigns for the White House and Congress. They can't both be right, and no matter which side is, this is one campaign clash with consequences extending well beyond Nov. 6. Given the millions that both sides are spending, the winner of the presidential election may be able to claim a Medicare mandate. (AP Photo/Ross D. Franklin, File)