The party of Theodore Roosevelt and Ronald Reagan has now lost the popular vote in five of the last six presidential elections. The marketplace of ideas will render us irrelevant, and soon, if we are not honest about our time and place in history. Unfortunately, much of the discussion has focused on cosmetic solutions to, say, our underperformance among ethnic and young voters. This is a mistake: we cannot cross this river by feeling for stones. Instead, we need to take a hard look at what today’s conservatism stands for.

Conservatives can start by examining how Republicans working with Democrats have governed in several successful states, including Utah; free-market-based healthcare reform, tax reform that eliminated deductions and closed loopholes to bring down...