We accept the premise that politicians make mistakes, and often say the wrong thing. Yet many people don't seem ready to accept the fact that Trudeau and perhaps his advisors on crafting the platform, made a mistake a mistake in advancing electoral reform. It's not clear and perhaps never will be, as to whether or not this was Trudeau's idea alone or he had help, but it is clear if you are a Liberal that it was a mistake. The Liberal Party have been the main beneficiaries to the Liberal Party. Why if you are one of the wealthy donors are any donor for  that matter, would you want to donate to a party that is perhaps ready to give away its majority in order to share government with the NDP and Greens under electoral reform ? The only other option was ranked ballot and that was seen as a blatant permanent power grab by the Liberals , and as such a non-starter. Logic suggests that this was a mistake and the mistake rests squarely with Trudeau.