As Ottawa advances senate reform, the Attorney General of New Brunswick sending a document to the Supreme Court of Canada arguing the federal government can't abolish the senate without getting the green light from all of the provinces.
The 53-page factum says not getting unanimous approval would undermine Canada's constitutional foundation, and it's inconceivable that a fundamental component of Parliament could be eliminated without having every province on board.
So far, Alberta is the only province to take the Harper Government's side, that the requirement would be the consent of seven provinces representing at least 50% of the population.