Kathryn — from the Yale Daily News article you referenced:

Scalia, who was originally slated to speak last fall, drew an over-capacity crowd in the Sheffield-Sterling-Strathcona Hall, where scores of students were turned away by Yale Police Department officers after the auditorium filled. YPU President Roger Low ‘07 said the Yale Law School did not allow the YPU to use the larger Levinson Auditorium for Scalia’s speech, as it did for Rev. Al Sharpton’s YPU address last month.