** FILE ** Sen. Angus King, I-Maine, pauses during an interview with The Associated Press, Friday, May 3, 2013, in Portland, Maine. (AP Photo/Robert F. Bukaty)

Photo by: Robert F. Bukaty

** FILE ** Sen. Angus King, I-Maine, pauses during an interview with The Associated Press, Friday, May 3, 2013, in Portland, Maine. (AP Photo/Robert F. Bukaty)