Conservative resistance to Mitt Romney’s nomination increasingly emphasizes electability as much as ideology, concentrating on his perceived weaknesses as a candidate along with an inconsistent approach to the issues. In headlining a typical blog post, Erick Erickson of RedState.com laments: “Mitt Romney as the Nominee: Conservatism Dies and Barack Obama Wins.”

Such projections of doom portray Mr. Romney as the dreary second coming of John McCain—a hapless moderate foisted on the disillusioned rank and file by the GOP’s country-club establishment, with no real chance to rally the conservative base or draw clear distinctions with Barack Obama.

This analysis, endlessly recycled on the right, relies on groundless assumptions about recent political history. Three myths in particular demand rebuttal and rejection as a prerequisite to GOP success in 2012 and beyond: