FILE - In this March 14, 2013, file photo Arkansas Republican Rep. Tom Cotton attends the 40th annual Conservative Political Action Conference in National Harbor, Md. A person familia

 

              FILE - In this March 14, 2013, file photo Arkansas Republican Rep. Tom Cotton attends the 40th annual Conservative Political Action Conference in National Harbor, Md.  A  person familia
FILE - In this March 14, 2013, file photo Arkansas Republican Rep. Tom Cotton attends the 40th annual Conservative Political Action Conference in National Harbor, Md. A person familiar with the congressman’s plans said Wednesday, July 31, 2013, the freshman congressman plans to announce his bid next week to challenge two-term incumbent Democratic Sen. Mark Pryor in next year’s elections. (AP Photo/Manuel Balce Ceneta, File)