It was an abrupt reversal for the school, which had condemned the views of Gavin McInnes even as it said free speech required it to host the event. Protesters confronted each other and police.
As it made its case to bring Gavin McInnes to campus, a student group compared him to "many great comedians that have come before," who challenge the way people see the world.
Pat Chambers resigned after the university said it investigated new allegations of inappropriate conduct. In July, a Black former player said Chambers referenced "noose" around the player's neck.