Every four years, The Monogram Shop in East Hampton sells cups emblazoned with the names of the presidential candidate from each party. And every single year—apart from 2016—the candidate who sells the most has gone on to win the election.
Early in the summer, the wealthy Hamptons residents who spend the season out east were buying Donald Trump cups by the boatload. The race wasn’t even close. By July 21, Trump was leading President Joe Biden in cup sales 2,610 to 847, a seemingly…

