Why Won’t Mike Pence Eat Alone with a Woman Who Is Not His Wife?

A recent Washington Post profile of Karen Pence mentioned that her husband, Vice President Mike Pence, never eats alone with another woman or goes without her to events where alcohol is being served.

Twitter erupted with outrage and ridicule.

But the Indiana Republican’s practice is not unusual in many conservative Christian circles. As Emma Green pointed out in The Atlantic, it likely stems from something called “the Billy Graham Rule,” named for the 98-year-old international evangelist. Nor is it that much different in intention from the practices of conservative Jews and Muslims.