Just 31% of U.S. Catholics believe that the bread and wine used in Communion become the body and blood of Christ. Nearly seven-in-ten say the Eucharist is symbolic.
On a number of issues, Catholic partisans often express opinions more in line with their political parties' positions than with their church's teachings.
White evangelical or born-again Christians backed GOP candidates for the House at about the same rate in 2014. Religious "nones" and Jewish voters again largely backed Democratic candidates.
American Catholics are racially and ethnically diverse and fairly evenly dispersed throughout the country. Many want to see the church make significant changes.
While white Democrats are less likely to be religious than Republicans, nonwhite Democrats more closely resemble Republicans overall on certain religious measures.
The Rev. Billy Graham, who recently died at age 99, was one of the most influential and important evangelical Christian leaders of the 20th century. As the country remembers Rev. Billy Graham, here are five facts about American evangelical Protestants.
Most Christians in America say that whether someone is a man or a woman is determined by their sex at birth. Yet, many religious "nones" have different views.