The United States has a problem with Christian nationalism. It is not a new problem, and it is important to understand that it predates Donald Trump. It has flared up in some major ways we have to confront. If we fail to do so, it will cause more harm to democracy. It is not going away on its own, not without some help.

While the number of Americans who celebrate Christmas as a cultural holiday is going strong, there has been a shocking rise in the number of people ditching Christianity — what sociologists call “nonverts.” Pew Research Center estimates that Christians will be a minority of Americans by 2070 if current trends continue.

Does part of the process of determining that a Pope has died call for him to be tapped on the forehead with a silver hammer?

In the United States, admirers of Pope Emeritus Benedict XVI remembered him warmly for his theological prowess and devotion to traditional doctrine. However, some U.S. Catholics, on learning of his death Saturday , recalled him as an obstacle to progress in combating clergy sex abuse and expanding the role of women in the church.

While the number of Americans who celebrate Christmas as a cultural holiday is going strong, there has been a shocking rise in the number of people ditching Christianity — what sociologists call “nonverts.” Pew Research Center estimates that Christians will be a minority of Americans by 2070 if current trends continue.

Religion News Service columnist Mark Silk on the differing stances taken by the Catholic Church and The Church of Jesus Christ of Latter-day Saints on the Respect for Marriage Act.

Atheists and agnostics tend to be just a healthy and satisfied with life as their religious counterparts, according to new research published in Journal of Religion and Health.

Sheetal Deo was shocked when she got a letter from her Queens apartment building’s co-op board calling her Diwali decoration “offensive” and demanding she take it down. “My decoration said ‘Happy Diwali’ and had a swastika on it,” said Deo, a physician, who was celebrating the Hindu festival of lights.

The Church of Jesus Christ of Latter-day Saints said Tuesday it would back proposed federal legislation to safeguard same-sex marriages, marking the latest show of support for the measure from conservative-leaning groups.

This year, Rosh Hashanah fell on\u00a0the same day the Texas State Board of Education\u00a0scheduled a public hearing to discuss religious freedoms.

An interdisciplinary team of researchers have launched a new project to test popular and academic theories about why some people are atheists and others are not.

More Catholic health systems are acquiring or merging with secular ones, which puts God in charge whether patients like it or not.

They thought they were attending a college fair. Then things took a dark turn as girls were allegedly separated and “advised to forgive men who rape and assault them.”

The East Baton Rouge school system in Louisiana has been accused of tricking hundreds of high school seniors into attending a religious event this week disguised as a college and career fair.

The percentage of Hispanics in the U.S. who identify as atheist or agnostic grew in the past 12 years.

Everyone can think of at least one belief system which is detrimental to human welfare. What I mean by "detrimental" in this context is that it leads to unnecessary pain and suffering. This does not mean it could not still have some positive attributes. But whatever positives might apply cannot make up for the harm caused.

Eliza Campbell had spent her entire life as a practicing member of the Church of Jesus Christ of Latter-day Saints. She was born in Utah, a state in which the majority of residents belong to the church, and attended Brigham Young University, a private institution owned and operated by the church.

Pope Francis says he has taken it on himself to rid the Catholic Church of sexual abuse, telling CNN's partner channel CNN Portugal that he was "responsible that it doesn't happen anymore."

Across the United States, young adults are becoming less religious.