Last year, at an event at the White House, former president Barack Obama jokingly referred to the current president as “Vice President Biden.” At the time, it was described as the more popular politician “reminding Biden who’s boss.” Yet, this needling carried an added bite, given reports of Obama’s private doubts about Biden’s judgment. In 2020, Obama had famously warned fellow Democrats, “Don’t underestimate Joe’s ability to f— things up.” Obama is now being asked to bail Biden out from another debacle of his own making, going back to his time in Obama’s administration. Various committees and private groups are...