Now that Stormy Daniels has confirmed on national television that Donald Trump initiated sex with her just months after his third wife gave birth to their child, at least half the country is asking: Surely this is a porn star too far for white evangelical Christians, right?

Wrong.

As we celebrate Easter Sunday, nearly 18 months after Mr. Trump won the presidency with about 80 percent of the white evangelical vote, surveys show him retaining nearly all of that support. In contrast, white evangelicals re-elected George W. Bush in 2004 with 78 percent of their votes, but by May 2006 their approval had slid to 55 percent. And that was after Mr. Bush had delivered, in late 2005 and early 2006, the Supreme Court appointments of both John Roberts and Samuel Alito.

The resilient support for Mr. Trump is hard to square with a constituency best known for trumpeting “family values” and proclaiming the nation’s moral decline. It also belies the idea that a record-high percentage of white evangelicals voted for Mr. Trump in 2016 simply because they could not bring themselves to cast ballots for Hillary Clinton.

You could open a publishing press devoted to the theological and sociological explanations for this phenomenon — from the unlikely belief that Mr. Trump found Jesus on the campaign trail to the idea that his presidency is all part of God’s plan to the role persecution narratives and Christian nationalism play in the evangelical worldview.