US Ambassador to the United Nations Mike Waltz got into a shouting match Tuesday with Cuba’s foreign minister on the floor of the UN’s General Assembly hall while detailing the communist regime’s ill-gotten wealth. The ambassador was calling attention to the “corrupt Cuban elites,” at one point displaying a photo of late dictator Fidel Castro wearing two Rolex watches worth around $40,000 in today’s money. “According to the regime’s own statistics, that would pay for 55 years of an average Cuban wage,” Waltz noted, before showing a photo of Miguel Díaz-Canel and saying, “It didn’t just start with Castro. This...