One of the first signs of trouble came last spring, when the Trump administration abruptly moved to deport scores of international students, including a handful at the University of Wisconsin-Madison.
University officials were alarmed, well aware that around 8,000 students, 15 percent of its enrollment, were from abroad. And they worried that the looming deportations might spook prospective international students, said Frances Vavrus, the dean of the international division at the University of Wisconsin-Madison.