Betsy DeVos kept her promise. As the education secretary vowed in September 2017, the department’s Office for Civil Rights last week formally proposed new regulations designed to create a more just process when campus tribunals adjudicate sexual-misconduct allegations. The proposed rules closely track recent court rulings favoring accused students.

In 2017 interim guidance, Mrs. DeVos had invited schools to develop fairer procedures under the law known as Title IX. But nearly all retained the Obama administration’s approach,...