If nothing else, American presidents are useful for marking time. They symbolize eras and moments.
The last president to address a joint session of Parliament before Friday was Barack Obama in June 2016. Back then, Donald Trump was on the verge of being elected president. Now, Trump is on the verge of being indicted.
Back then, Justin Trudeau was seven months and 25 days into his time as prime minister and his personal approval rating was plus-32. Now, Trudeau has been prime minister for seven years, four months and 20 days and his personal approval rating is minus-19.
“I think we can all agree that
