Beauharnois scandal

The Beauharnois scandal was a Canadian political scandal around 1930. The Beauharnois Light, Heat and Power Company had given $700,000 to the ruling Liberal Party of Canada in the run-up to the 1930 federal election in exchange for the right to change the flow of the St. Lawrence River through building a hydroelectric power station.

The scandal "tainted" the reputation of Prime Minister William Lyon Mackenzie King, although it was not discovered until the year after he had lost the election. Later commentators have suggested it was the "most famous" example of political bribery in the decade.