Dear Mr. Trudeau,
I read your letter congratulating Mr. Trump on his election victory. Of course that same letter could have been addressed to Ms Clinton upon her victory. These things have to be said, regardless of your personal feelings. That's fine.
It was once common to refer to the President as "The Leader of the Free World". Fortunately the term doesn't seem to be used much anymore. I don't think many people could use the term in reference to Mr. Trump without feeling a little sick. The only leadership Mr. Trump shows is in the leadership of Trump-World.
I don't really see any other individual nation or national leader to take on that role, and maybe that's just as well. But leadership is needed, and I'm calling on you to reach out to other world leaders. Push to bring more energy to existing coalitions, or create new ones, to take on the many issues facing the world. Push against the disinterest from the USA, or even active opposition. We cannot wait for the next President.