Both liberals and conservatives tell the wrong story about free speech on college campuses

When it comes to understanding disputes over free expression on college campuses, such as speakers getting disinvited or having their speeches interrupted, conservatives tend to blame liberal professors for indoctrinating students and ostracizing those who don’t agree with liberal viewpoints. One prominent conservative organization, Turning Point USA, has gone so far as to create a database of faculty it says “discriminate against conservative students and advance leftist propaganda in the classroom.”

Liberals, in contrast, argue that concerns about free speech on college campuses are overblown. They also accuse conservatives of...