"Senior government source says the White House has warned the Prime Minister's Office that if Canada implements retaliatory tariffs the US will hit Canada even harder"
The long-term damage this will do to the USA is irreversible. No ally will ever entangle themselves with the USA as they have in the past. It’s like inviting a friend over, only for him to pull out a gun and rob you—then demand to come back next week.
The USA is shrinking, and the orange tough guy thinks he's working wonders.