Trudeau, who is facing pressure from members of his own Liberal party to quit ahead of federal elections in Canada later this year, has been a target of frequent attacks from U.S. President-elect Donald Trump.

The Canadian Prime Minister announced his resignation Monday, pending an internal party election to replace him

The "Trump factor" was a key element driving Trudeau's resignation, Chantal Da Silva said at NBC News. Incoming U.S. president Donald Trump has threatened to slap large tariffs on America's northern neighbor — and has frequently mused about making Canada America's "51st state.