The number of Americans who identify with Christian nationalism is slightly declining, but religion remains a large part of politics for both candidates and voters ahead of the 2026 midterm elections."We see where Americans fall on this spectrum of Christian nationalism, which really tells us a lot about what they think democracy is and how it's functioning," said Andrew Whitehead, a professor of sociology at Indiana University Indianapolis and a research fellow for the Charles F. Kettering Foundation.

Whitehead cited data from the Kettering Foundation and Gallup's annual national survey of more than 23,000 adults.

He said around 14% of the U.S. population strongly embraces Christian nationalism, with just over 16% at least sympathetic to it.