Club for Growth is free trade and was strongly in favor of increased immigration for a long time. Enzi lost ground with them for voting for the farm bill and the sugar subsidy and against unlimited deposit insurance. Those aren’t make or break issues for most Republicans, especially in farm states. Do you really think DC Liz would go out of her way to risk reelection by voting against agricultural subsidies?
Cheney and Enzi are beltway.
Maybe a third real conservative should run in the GOP primary....