Most of the foreign money in Canada is from the Koch brothers and other right wingers who have poured millions into  Canadian right wing think tanks and have been influencing  Canadian government policy and pubic opinion for many years.

After his defeat, Harper flew to Los Vegas to address a group of Republicans at the home of billionaire Sheldon Abelson, source of "dark money" in the US and Israel,

 As well the Conservative Party has brought in advisers from the right wing of the Republican Party  and have followed many of their negative advertising and dirty tricks campaigns very closely.  They even imported a notorious Australian right wing adviser last elections whose stock in trade is dirty tricks.