Where did this history leave evangelicals†political involvement?

For a start, modern evangelicalism has an important intellectual piece missing. It lacks a model or ideal of political engagement—an organizing theory of social action. Over the same century from Blanchard to Falwell, Catholics developed a coherent, comprehensive tradition of social and political reflection. Catholic social thought includes a commitment to solidarity, whereby justice in a society is measured by the treatment of its weakest and most vulnerable members. And it incorporates the principle of subsidiarity—the idea that human needs are best met by small and local institutions (though higher-order institutions have a moral responsibility to intervene when local ones fail).

In practice, this acts as an “if, then” requirement for Catholics, splendidly complicating their politics: If you want to call yourself pro-life on abortion, then you have to oppose the dehumanization of migrants. If you criticize the devaluation of life by euthanasia, then you must criticize the devaluation of life by racism. If you want to be regarded as pro-family, then you have to support access to health care. And vice versa. The doctrinal whole requires a broad, consistent view of justice, which—when it is faithfully applied—cuts across the categories and clichés of American politics. Of course, American Catholics routinely ignore Catholic social thought. But at least they have it. Evangelicals lack a similar tradition of their own to disregard.

The Moral Majority appeared at about the same time that the actual majority was more and more comfortable with divorce and couples living together out of wedlock. Evangelicals experienced the power of growing numbers and healthy subcultural institutions even as elite institutions—from universities to courts to Hollywood—were decisively rejecting traditional ideals.

As a result, the primary evangelical political narrative is adversarial, an angry tale about the aggression of evangelicalismâ€s cultural rivals. In a remarkably free country, many evangelicals view their rights as fragile, their institutions as threatened, and their dignity as assailed. The single largest religious demographic in the United States—representing about half the Republican political coalition—sees itself as a besieged and disrespected minority. In this way, evangelicals have become simultaneously more engaged and more alienated.