Is America a "Christian Nation" After All?

Is America a "Christian Nation"? Was it ever?

It's a question that many are asking as we approach the 250th anniversary of the nation's founding. It also appears to be a question that many leaders have apparently already answered on our behalf: Recently, thousands gathered on the National Mall to "re-dedicate" the United States of America to God. House Speaker Mike Johnson led the event, declaring, "We hereby rededicate the United States of America as one nation under God." President Trump (appearing via a pre-recorded video) read scripture from 2 Corinthians. One attendee later told a reporter that without Christian faith, "the whole country will collapse."

To many watching, the moment felt like something new: a louder, more confident claim that America belongs to Christianity. Historian David Mislin, writing for Religion News Service, sees a longer pattern. According to Mislin, this kind of declaration has surfaced before, usually at moments when Christian Americans felt threatened, rather than triumphant.

Before we get into that history, there's one more important question to consider: what the heck does "Christian nation" even mean? And the reality is... that answer stretches across a wide spectrum. On the soft end, it simply means that since its founding, most Americans have historically identified as Christian, a demographic fact nobody disputes. On the harder end of the framework, the one used by Hegseth and the "Re-Dedicate 250" organizers, it means something closer to a mandate: that Christianity should shape America's laws, government rhetoric, and national identity... not just describe the people living under it.

A Familiar Script

Defense Secretary Pete Hegseth echoed the Re-Dedication rally's language in his own role, declaring "Christ is King" at a convention in February, and alleging that there is "a direct through line" from the New Testament to the founding of the United States. Mislin connects this rhetoric to earlier waves of the same instinct.

During the Civil War, both the Union and Confederacy invoked God's favor for their cause, and a coalition of Northern Protestant denominations pushed a constitutional amendment declaring the U.S. "a Christian government." A decade later, Protestant leaders tried again, seeking to name the Bible the nation's "supreme rule." Neither amendment passed. Both reflected real anxiety, over a fracturing union in one case and rising religious diversity in the other.

The Cold War produced a third wave. Two of the country's most familiar God-references are newer than most people assume: it wasn't until 1954 that President Eisenhower signed "under God" into the Pledge of Allegiance, framing it as a defense against "godless" Soviet communism. The following year, "In God We Trust" was placed on all U.S. currency. One of the bill's sponsors, Rep. Charles Bennett, argued the country "was founded in a spiritual atmosphere and with a firm trust in God."

What the History Leaves Out

Mislin's history is solid as far as it goes, but it perhaps skips one fact that could arguably be the decisive end to the conversation: In 1797, the Senate unanimously ratified the Treaty of Tripoli, which states plainly that "The government of the United States is not, in any sense, founded on the Christian religion". President John Adams signed it.

Even the founding fathers who debated faith and government most directly landed closer to neutrality than they did to the triumph of Christianity. Thomas Jefferson, famously a deist himself, wrote of a "wall of separation" between church and state. James Madison warned that government was no "competent judge of religious truth." Their caution complicates any claim that the founding itself was Christian in any official sense.

The piece also leaves out one of the loudest waves of all: the rise of the Religious Right. After the Supreme Court banned school-sponsored prayer in 1962 and legalized abortion in 1973, Jerry Falwell founded the "Moral Majority" in 1979, fusing evangelical identity with electoral politics in a way that continues to shape American elections.

That movement, more than the Mall rally or Hegseth's speeches, built the infrastructure now amplifying "Christian nation" claims today, running from school boards to statehouses to the Pentagon, decades after Falwell first linked the cause to a ballot box. That same infrastructure arguably allowed Texas officials to mandate that the Bible be read in all of its public schools earlier this week.

Who Actually Counted?

To their credit, supporters of the "Christian nation" framing aren't simply inventing a connection. Indeed, many early colonists identified as Christian by upbringing, and many founders saw religion as a public good worth encouraging. Defenders often lean on that history's demographics rather than its theology, pointing to something like 90 percent of the founding-era population being Christian, as if sheer numbers decided the nation's character before the Constitution was even written.

It's a tidy statistic. It's also built on a foundation that doesn't hold up. Historians who study colonial church membership put the real figure closer to one in five, with estimates ranging from 17 to 80 percent depending on how loosely "church" is defined. Many of the earliest colonists were far less religious in practice than popular memory suggests.

The 1790 census, the source behind most founding-era religious math, also excluded Native people from its count entirely, treating them as a separate group rather than part of the population being measured. Hundreds of tribal nations across the continent practiced their own ceremonies and spiritual traditions long before European contact, and many still do. A statistic that reaches 90 percent only by erasing them says more about who was doing the counting than about who was actually here.

The disagreement was never really about whether Christianity mattered to early Americans. It's about whether the federal government should ever declare one faith its own.

Where This Shows Up Today

That same question is alive across ULC's own pages, where ministers and members have argued for years over what the founders actually intended. It's alive in the Pentagon, where Hegseth's prayer services and chaplaincy changes have drawn complaints from non-Christian service members. And it's alive in Texas classrooms, where the same Establishment Clause questions resurface every time a school treats one faith as the default.

What unites all of it is the same anxious instinct Mislin describes: when the country feels unstable, someone reaches for God's name to stabilize it. The trouble is that America was built to hold many gods, and no god at all, under one Constitution. Declaring it Christian doesn't restore that founding promise; it narrows it.

History suggests the current wave will eventually recede, the way the Civil War amendment and the Bible campaign and the Cold War worries did before it... but what it leaves behind each time, in mottos, pledges, and policies, tends to stick around far longer than the anxiety that produced it.

So, where do you land? Is America a "Christian Nation" after all? And if it is... what does that mean for the tens of millions of Americans who practice something else, or nothing at all?