Question Period June 7, 2018 Trans Mountain Pipeline

Mr. Speaker, the Prime Minister claimed that the cost of the pipeline would be $4.5 billion. We now know that it is not true, it is just a guess. Canadians could be on the hook for a lot more than $4.5 billion for the existing pipeline, never mind the construction costs for the new pipeline. When will the Liberals come clean and tell Canadians how much it is going to cost?