Last weekend, on the anniversary of the inauguration, Melania Instagrammed a throwback picture of herself in her powder-blue Jackie suit, not with her husband but with a hunky Marine escort. She wore a delighted ear-to-ear smile, the kind she never seems to flash around the Donald. (It would have been even funnier, of course, if she had posted a photo of herself in front of some empty stands and a sparse crowd, but we’re talking more grounds for divorce there.)

After the Stormy Daniels story broke — about Trump cavorting and watching Shark Week with the porn star and telling her not to worry about Melania, at home with a new baby, and then having his lawyer allegedly pay Stormy $130,000 during the campaign to hush her up — a wintry Melania canceled her plan to accompany her husband to Davos.

Instead, while the kid from Queens was abroad trying to impress the soul-sucking global elites he got elected railing against, pathetically bragging that he had “a crowd like they’ve never had before in Davos,” Melania made a solo visit to the Holocaust Museum here for Holocaust Remembrance Day. This looked like a subtle reproach to Trump for his unspeakable defense of the “very fine people” among the neo-Nazis in Charlottesville, Va., and an allusion to the president’s statement last year on remembrance day, which somehow neglected to remember Jews or anti-Semitism. What a Stephen Miller special that was.

Afterward, the always elusive first lady became even more elusive, slipping out of Washington, much to the surprise of the press. Suddenly, as Stormy Daniels began her media tour on “Inside Edition” and booked an appearance on “Jimmy Kimmel,” Melania was making a stealthy landing in Florida on an Air Force plane.

Trump could humiliate his wife by being a big, horny pig, but he is the one who comes off as the embarrassment. He’s an embarrassing husband and an embarrassing president and an embarrassing leader of the free world. Barack Obama was always calling to our better angels. Donald Trump is paying off porn stars and denigrating struggling countries that send minorities to the U.S. as “shitholes.” How did we drop so far and so fast from class to crass?