William "Mo" Cowan, center, flanked by Massachusetts Gov. Deval Patrick, left, and Massachusetts Lt. Gov. Tim Murray, right, gestures as he speaks during a news conference at the Stateh

 

              William "Mo" Cowan, center, flanked by Massachusetts Gov. Deval Patrick, left, and Massachusetts Lt. Gov. Tim Murray, right, gestures as he speaks during a news conference at the Stateh
William "Mo" Cowan, center, flanked by Massachusetts Gov. Deval Patrick, left, and Massachusetts Lt. Gov. Tim Murray, right, gestures as he speaks during a news conference at the Statehouse in Boston, Wednesday, Jan. 30, 2013, where he was named interim U.S. Senator for the seat vacated with the resignation of Sen. John Kerry, D-Mass. who will become secretary of state. (AP Photo/Charles Krupa)