It was the combination of this kind of informal updo with a dress that was pretty, but also unremarkable, that signaled a kind of pulling back, a disengagement, with the American public. Mrs. Obama didn’t throw her middle fingers up at the system that had just elected Donald Trump. However, the subtlety in her refusal of pomp and circumstance belied a deep disdain for the way in which the American people had rejected her work, and that of President Obama, by installing his nemesis—a man who had started a whole movement questioning his citizenship—in the White House.