From "just not ready," to leading Canada for the past five years, Prime Minister Justin Trudeau revived the Canadian Liberal Party and has pushed forth a progressive agenda. Along the way, he's suffered personal gaffes, caucus pains, and plenty of criticism. He's also had to navigate a diplomatic relationship with the unpredictable Donald Trump. Political columnist John Ivison puts the PM's leadership under consideration with his new book, "Trudeau: The Education of a Prime Minister."