When you are in the same enclosure with an elephant, and you are the mouse, you  treat the elephant with respect, regardless as to what you might think of the elephant. I believe J Trudeau is handling it as well as can be expected. I thought Harper did a good job overall as PM,  but I wonder how he would have handled this one. 
Until he is gone D Trump is the big man on campus.This is an example where honey works better than vinegar. .