The fact that first lady Jill Biden, but not her husband, President Joe Biden, will be attending King Charles III’s coronation on May 6, 2023, has not gone down too well with sections of the U.K. press. A “royal snub,” screamed headlines, while commentators grumbled about “Irish Joe” and his “hatred” of the Brits. The truth is, no U.S. president has ever attended a British coronation ceremony. Indeed, American presidents tend to avoid royal ceremonies of all stripes. Biden did attend Queen Elizabeth II’s funeral in September 2022, but that was very much the exception, not the rule. Given the...