Editor's Note: This column was co-authored by Michael Petrilli. Ever since election results from May 5th were finalized, a number of voices have loudly touted cherry-picked upsets—namely, the primary defeats of two incumbent Republicans in the Indiana legislature—to build what they want to present as a larger narrative of rising opposition to Common Core. This narrative is misleading. In fact, the GOP primary results from throughout this month showed, if anything, that opposing Common Core is not a ticket to office for a right-flank challenge to an incumbent, and the efficacy of attempts to take out Republicans from the right...