WASHINGTON (AP) — The U.S. Chamber of Commerce is launching ads backing eight-term Republican Rep. Mike Simpson, who faces a primary challenge in Idaho.
The business organization also is airing ads for two GOP candidates in West Virginia as it ramps up its political activity for next year's congressional elections.
The Chamber's involvement in Idaho marks the second time in recent months that the group has taken sides in the internal Republican fight pitting the GOP establishment against conservative activists. The group backed Bradley Byrne over tea party favorite Dean Young in a special congressional runoff primary in Alabama. Byrne won the Nov. 5 contest.
Simpson is facing a challenge from lawyer Bryan Smith, who has the endorsement of the anti-tax Club for Growth.
The Associated Press obtained advance copies of the commercials.