Tom Friedman's most popular column ever

Donald Trump.
Photo: Jabin Botsford / The Washington Post via Getty Images

It's #1 on the N.Y. Times' "Most Emailed," "Most Viewed" and "Most Shared on Facebook." And its author, Tom Friedman, tells CNN's Brian Stelter it's "the most widely circulated column I've ever written."

The headline: "Whatever Trump Is Hiding Is Hurting All of Us Now"