Now, I have nothing against "learning on the job."  Valuable stuff.  Did it myself in the past.  But I would argue that, quite recently, there is some proof that the PM is very SLOW to learn on the job.  If he had been smarter--even simply more cautious-- he would NEVER have tweeted "welcome to Canada" to all those "huddled masses" already in the U.S., "yearning to be free" of...something.

Did the PM learn NOTHING from months and months of misuse, abuse and obsession with social media by the American President?  Appears not to be the case.   

Unbelievable, when you think about it.