Justin Trudeau’s announcement that he will step down in the coming months means Canada’s Liberal party needs a new leader. The party will announce the winner of the leadership race on 9 March. That person will become prime minister – but might only have weeks on the job. With the Conservatives eager for an election, the government could fall when parliament returns in late March if other opposition parties join a vote of non-confidence. A number of senior cabinet members had been expected to enter the race – including the foreign minister, Mélanie Joly, finance minister Dominic LeBlanc, industry minister