By Cameron Joseph - 09/28/12 07:12 PM EDT
"Talk is cheap but Jon Tester's actions are costly," the ad's narrator says before playing clips of Tester promising to support a local mine and developing more coal.
"But Tester voted against Bull Mountain and the jobs it created," the ad's narrator charges. "Tester voted for Obama's regulations that are forcing a Billings company to mothball its coal-fire power plant, threatening jobs. With Jon Tester, talk is cheap. But Tester's support of Obama costs Montana jobs."