When Matt Dorman spent 3,240,000 guineas on eight yearling fillies at last year's Tattersalls October Book 1, he pretty much accepted that he'd never again see the 10-15% tariffs he paid on the horses again. The tariffs, a result of Donald Trump's invocation of the International Emergency Economic Powers Act (IEEPA) to implement taxes on goods being imported from foreign countries in 2025, included a 10-percent rate. The figure was levied on goods coming from the U.K., while 15 percent was assessed on other European Union countries. That meant that...