People in Presidential cabinets leave all the time. The high-stress environment takes its toll on people. Whatever chaos there may or may not be in Trump's cabinet is IMO directly related to the liberal media and the chaos created by the Trump haters. People are rabid with hatred of him, and anything he tries to do. He could paint the world in gold, give every human on earth $1B in crypto, end world hunger and achieve world peace and the haters would still hate.