President Donald J. Trump campaigned on the notion of a new deal, as it were, for the American worker.

So why is the American worker under siege three weeks into his presidency?

He has threatened to impose a 20-percent tariff on Mexican imports, which would no doubt ensure tariffs on American exports to Mexico like corn and soy.

He has instigated a ban on seven Muslim countries – a ban whose stay the Ninth Circuit Court of Appeals has just upheld – which would threaten American universities and a tech industry that relies on the best and the brightest worldwide.

And he has shamed a major retailer, Nordstrom, for dropping daughter Ivanka’s line – Neiman Marcus has dropped her jewelry – thereby giving pause to those who would do business with and in America. ...

What a fun evening at Neiman Marcus, The Westchester in White Plains last Wednesday.

Hannie Sio-Stellakis, the store’s public relations manager, had kindly invited me to do a book signing for my new novel, “Water Music”, as part of Neiman’s InCircle event. As models Ksusha, Kash, Heidi, Paul and Tom strolled the terraced floors in striking daywear and eveningwear, shoppers sampled steak, risotto, shrimp wrapped in snow peas, Champagne, cappuccino, iced cookies and chocolate cheesecake bits – all set to a killer DJ. (Heidi and I even did a mini-duet on Miley Cyrus’ “Wrecking Ball.”)

It was a great opportunity to make new acquaintances and relish old ones like David Hochberg, editorial adviser of WAG magazine, which I edit.

David hung with me all night, helping me lug all my props and books back to the car at the end of the evening.

He reminded me that everything is more enjoyable when you share it with others.