I am so old that I recall his Dad's timeline as PM: 
first, election campaign: euphoria; then first year in power, high hopes, some key initiatives; 2nd-3rd years, economic problems,  arrogance, disappointments, anger, formation of anti-Trudeau voting blocs (Sun chain launched in TO); 4th year, stunning electoral collapse, barely holding on to power vs upstart Conservatives.

But then, history never repeats itself, eh?