Seph.

Adam Sopher, co-founder and chief executive at Joe & Seph's, the London-based luxury popcorn-maker, says the mere spectre of tariffs had already been affecting the business.

Joe & Seph's made £8m in sales last year of which 2%-3% came from the US.

However, the 10% tariff was not as bad as he was expecting and US importers aready have to pay a 5.8% tariff on Joe & Seph's goods when they reach American ports.

Seph Rodney is a curator and art critic in Newburgh, N.Y.

“No aspect of that plan has been implemented yet,” the critic Seph Rodney and the art historian Aaron Levy wrote in a joint resignation letter sent to the board of AICA-USA in January.