Justin Trudeau is facing a political crisis made worse by Donald Trump. Can he survive as Canadas leader? | National & World [Video]

(CNN) — Canadian Prime Minister Justin Trudeau soared to victory in 2015 on the promise of change and “sunny ways” for the country.

Nearly a decade later, a dark storm cloud has descended upon his increasingly unpopular administration, with the resignation of a top Cabinet minister over a dispute about how to manage US president-elect Donald Trump’s tariff threats.

The abrupt exit Monday of finance minister and longtime Trudeau ally Chrystia Freeland – and her public rebuke of her boss – stunned Canadians and threatened to further unravel the government of a country known for its stability.

Trudeau’s already shaky hold on the country has now become more tenuous as pressure builds on him to step down.

Here’s what’s happening and what it means for Canada.

Who is Trudeau?

Justin Trudeau, a former high school teacher and the eldest son of Pierre Trudeau, one of Canada’s most well-known prime ministers, was elected in 2015 with a decisive …