"Does Mike Simpson support or oppose expanding Medicaid under ObamaCare in Idaho, just as his supporters in the Idaho Association of Commerce and Industry do?" Club for Growth spokesman Barney Keller said in a statement. "Medicaid expansion will cost taxpayers billions and stick future generations with the bill. Conservatives across the country are rejecting ObamaCare’s Medicaid expansion, and Mike Simpson should have to answer if he joins with the Idaho Association of Commerce and Industry in supporting ObamaCare’s Medicaid expansion in Idaho."
The statement comes a few days after Idaho's Association of Commerce, the state's largest business lobby, endorsed Medicaid expansion in the state. Idaho's Gov. Butch Otter (R) opposes the proposed Medicaid expansion.
Simpson's re-election fight is seen as representative of the broader struggles for dominance between the tea party and more mainstream wings of the Republican Party. Simpson is a close ally of House Speaker John Boehner (R-OH) and Smith has been endorsed by a number of prominent tea party groups.