Former Montana Gov. Brian Schweitzer, center, speaks with union representatives at the Montana AFL-CIO annual convention in Billings, Mont. on Friday, May 10, 2013. Schweitzer, who was endorsed by the... more 
Former Montana Gov. Brian Schweitzer, center, speaks with union representatives at the Montana AFL-CIO annual convention in Billings, Mont. on Friday, May 10, 2013. Schweitzer, who was endorsed by the AFL-CIO during his two gubernatorial campaigns, is considering a run for the U.S. Senate. (AP Photo/Matthew Brown) less 
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Associated Press | Photo By Matthew Brown
Fri, May 10, 2013 11:18 PM EDT