Associated Press: Montana Democrats Max Baucus and Jon Tester are among six senators from both parties, who are targets of radio and TV ads aimed at killing a climate change bill. A conservative, free-market advocacy group called The Club for Growth will air the ads beginning this week in North Carolina, Tennessee and West Virginia. Ads aimed at Tester and Baucus will air in Montana next week. The climate bill would cap carbon dioxide emissions from power plants, transportation, and …