Sen. Roy Blunt, Missouri Republican, assures people about his health on Wednesday, Jan. 18, 2012, in Savannah, Mo., following a stent procedure the previous week to relieve a blockage in his heart. (AP Photo/St. Joseph News-Press, Eric Keith)

Sen. Roy Blunt, Missouri Republican, assures people about his health on Wednesday, Jan. 18, 2012, in Savannah, Mo., following a stent procedure the previous week to relieve a blockage in his heart. (AP Photo/St. Joseph News-Press, Eric Keith)