Calls are growing from within the Liberal caucus for Prime Minister Justin Trudeau to step down as party leader — and some have pegged Chrystia Freeland as their choice to replace him.Twenty-one Liberal MPs have publicly urged Trudeau to resign — many of them within the last week — after Freeland shocked Canadians on Monday by resigning as deputy prime minister and finance minister hours before she was supposed to table the government's fall economic statement.

Freeland, 56, has been a prominent figure in Trudeau's Liberal government since he took office in 2015, and led the renegotiation of the North American Free Trade Agreement during the Donald Trump's first presidency. Trump has threatened to impose 25% tariffs on all Canadian exports in his second term, which starts next month.

That builds on the MPs already opposed to him continuing, believed to be over a third of the 153 from the ruling party