In the House of Commons on April 30th, 2008. See this statement in context.
Elections CanadaOral Questions
Saint-Laurent—Cartierville Québec
Liberal
Stéphane Dion LiberalLeader of the Opposition
First, Mr. Speaker, I want to wish the Prime Minister a happy birthday, and as a gift, I have a very simple question for him.
When exactly was he made aware of the Conservative's advertising scheme for the last election, and did he approve this scheme?
See context to find out what was said next.