FILE - In this Tuesday, Sept. 4, 2012 file photo, former Assistant Secretary, U.S. Department of Veterans Affairs Tammy Duckworth speaks to delegates at the Democratic National Conventi

 

              FILE - In this Tuesday, Sept. 4, 2012 file photo, former Assistant Secretary, U.S. Department of Veterans Affairs Tammy Duckworth speaks to delegates at the Democratic National Conventi
FILE - In this Tuesday, Sept. 4, 2012 file photo, former Assistant Secretary, U.S. Department of Veterans Affairs Tammy Duckworth speaks to delegates at the Democratic National Convention in Charlotte, N.C. Duckworth, who is running in 2012 as a congressional candidate in Illinois, became a double amputee when her National Guard helicopter was shot down in Iraq in 2004. (AP Photo/Charlie Neibergall, File)