The astonishing list of Trump officials who threatened to quit

President Trump at a rally earlier this week. A number of his top officials have threatened to leave the White House.
President Donald Trump speaks to supporters. The day before, his homeland security secretary let it be known she considered quitting. (Photo by Scott Olson/Getty Images)

President Trump sees his improvisational and impulsive style as the indispensable key to his leadership. Those around him often see it as infuriating — and reason to quit. 

The latest incident: "Kirstjen Nielsen, the homeland security secretary, told colleagues she was close to resigning after President Trump berated her on Wednesday in front of the entire cabinet for what he said was her failure to adequately secure the nation’s borders," the N.Y. Times and others report.