1980 Quebec referendum
On May 14, six days before the vote, Trudeau made his final appearance at a packed Paul Sauvé Arena, where the PQ had celebrated their victory in 1976.  Trudeau attacked the "Yes" campaign for not asking a clear question, and stated that a "Yes" vote was a dead end, given that the rest of Canada was not bound by the question and that it was too vague to pursue independence if negotiations were refused.