As Donald Trump prepares to return to the White House, his election victory is likely to embolden those who think they can get his ear. There's the prospect that his second administration could face many of the same perils as his first, when there were influence-peddling scandals. That will test the ability of Susie Wiles, his incoming chief of staff, to manage a growing number of high-powered figures such as Trump’s children, son-in-law Jared Kushner and billionaires like Elon Musk. Wiles herself is a former lobbyist, but Trump's transition team rejected any suggestion that her past work would make her susceptible to pressure.