Democrat Warns of Christian Nationalism Threat to Church-State Separation

Jared Huffman sits alone in a particular corner of American politics. The California congressman is the only member of Congress who openly identifies as a humanist—a secular philosophical position that rejects supernatural claims and centers human reason and ethics. From that singular vantage point, he has watched something he finds deeply troubling gain ground in the halls where laws are made.

In a new book, Huffman argues that the constitutional separation of church and state—the principle that has theoretically governed American governance since the founding—is now in genuine peril. The threat, as he sees it, comes from Christian nationalism: a political movement that fuses Christian identity with American nationalism and seeks to embed Christian values directly into law and policy.

The concern is not abstract. Huffman points to concrete examples of how this ideology has begun reshaping governance. Laws restricting abortion access, efforts to inject religious instruction into public schools, attempts to limit voting rights in ways that disproportionately affect certain communities, and the appointment of judges who view the Constitution through an explicitly Christian lens—these are not separate phenomena, in Huffman's analysis. They are expressions of a coherent worldview that treats Christian doctrine as the proper foundation for American law.

What makes Huffman's warning distinctive is his position as Congress's sole openly humanist member. While many Democrats have raised alarms about religious influence in politics, Huffman speaks from outside the framework of any faith tradition. He is not arguing that Christianity itself is the problem, but rather that the fusion of Christian nationalism with state power threatens the pluralistic democracy the Constitution was designed to protect. A humanist perspective, by definition, centers human flourishing and democratic self-governance rather than divine authority.

The book arrives at a moment when these tensions have become increasingly visible. The Supreme Court has moved in directions that align with Christian nationalist priorities—overturning Roe v. Wade, narrowing voting rights protections, expanding religious exemptions from generally applicable laws. State legislatures have passed bills that would effectively establish Christian teaching in public institutions. And in Congress itself, religious rhetoric has become more explicitly tied to policy positions on everything from healthcare to immigration.

Huffman's argument is that these are not isolated victories for religious conservatives but symptoms of a broader ideological project. Christian nationalism, he contends, is fundamentally incompatible with the secular constitutional order. It cannot coexist with genuine church-state separation because its entire purpose is to dissolve that boundary—to make Christian values the organizing principle of government itself.

The warning reflects a growing anxiety among Democrats about the direction of American governance. Where once religious influence in politics was understood as one interest group among many, competing for attention in a pluralistic system, it now appears to many observers as a coordinated movement with institutional power, judicial allies, and a clear legislative agenda. Huffman's book is one voice in that conversation, but it is a voice speaking from a position few others occupy—someone who has spent his career in Congress representing a secular worldview in an institution where religious language and religious identity remain deeply embedded in the culture.

What happens next will likely depend on whether voters see Christian nationalism as Huffman does: as a fundamental threat to constitutional democracy. Or whether they view it, as its proponents do, as a necessary reassertion of America's Christian heritage. That question will shape American politics for years to come.