According to this piece by Gabriel Sherman in Vanity Fair, a grim projected death toll and a friend in a coma seem to have resulted in a change of heart. Hope Hicks, Trump's longtime confidant, also seems to be making a difference. My university, the University of Texas at Austin, announced today that summer classes are going to have to be remote, meaning no in-person classes which has been the situation since Spring break.
The short of it is that we must not only flatten the curve but also end the pandemic itself—which are two overlapping, yet separate goals. We can't do this alone as a country. Because viruses know no borders, the whole world must be engaged—and ideally, in a collaborative manner.