MBS is emboldened by strong support from President Trump and his inner circle, who see him as a kindred disrupter of the status quo — at once a wealthy tycoon and a populist insurgent. It was probably no accident that last month, Jared Kushner, Trump’s senior adviser and son-in-law, made a personal visit to Riyadh. The two princes are said to have stayed up until nearly 4 a.m. several nights, swapping stories and planning strategy.