Editorial: An impossible man, a tough spot

In any situation, Donald Trump needs an adversary. Whether it’s the free press, gun-control advocates or the FBI, Trump’s formula is to vilify a foe whose very existence supposedly victimizes America. 
Shockingly, following the weekend’s G7 summit in Quebec, Canada is now that enemy.
Because Prime Minister Justin Trudeau had little choice but to confront Trump over his protectionism, the leader of Canada’s largest trading partner and, heretofore, its staunchest ally