Liberal-leaning Protestant groups, such as Presbyterians and Lutherans, started shrinking earlier, but some evangelical churches are now in decline. The conservative Southern Baptist Convention lost 200,000 from its ranks in 2014 alone, dropping to 15.5 million, its smallest number in more than two decades.
The trend is reflected in the highest reaches of public life. The U.S. Supreme Court is now comprised completely of Jews and Roman Catholics. In the 2012 presidential election, the Republican nominees were a Mormon, Mitt Romney, and a Catholic, Paul Ryan. [...]
Politically, old guard religious right organizations such as the Moral Majority and the Christian Coalition are greatly diminished or gone, and no broadly unifying leader or organization has replaced them. In this year's presidential race, the social policy issues championed by Christian conservatives are not central, even amid the furor over bathroom access for transgender people.