Is it possible to be the anti-establishment candidate in a Republican primary for the U.S. Senate and be the choice of the Republican establishment in your state at the same time? By definition, this would seem impossible. Yet, State Senator Joni Ernst has managed to be the establishment backed, anti-establishment candidate in Iowa’s Republican U.S. Senate primary. Iowa’s Lt. Governor Kim Reynolds was an early endorser of Ernst’s campaign, and Governor Terry Branstad has reportedly been helpful behind the scenes, especially in the fundraising department. Ernst has also been backed by national Republican establishment figures like Mitt Romney, Sen. John...