Data: PRRI; Note: Map shows the share who were classified as "adherents" or "sympathizers" based on their responses to five questions; Map: Erin Davis/Axios Visuals
Christian nationalism is now deeply entrenched inside today's Republican Party, according to a sweeping 50-state survey.
Why it matters: The once-fringe ideology holds that the U.S. was founded as a Christian nation and should be governed according to strict Christian values, even as the country becomes less religious and more racially diverse.
