After President Joe Biden ended his reelection campaign and formally endorsed Kamala Harris for president, it didn’t take Democratic leaders in Congress and the Democratic National Committee (DNC) long to rally around the vice president. According to reporting from Washington Post journalists Dan Diamond and Cleve R. Wootson Jr., more than 300 former staffers signed a letter in support of her after Biden exited the race. But some of them, the reporters say, “acknowledged it also addressed one of Harris’ perceived weaknesses as a candidate and elected official: her demanding management style.” …