HALIFAX — China slammed Canada’s decision to impose a 100 per cent import tariff on Chinese electric vehicles Tuesday, accusing it of politicizing trade and vowing to retaliate. Prime Minister Justin Trudeau announced the move at the federal cabinet retreat in Halifax on Monday, four months after U.S. President Joe Biden announced similar plans. Europe is also planning tariffs, though at a lower rate. Canadian automakers welcomed the plan, though some environmental activists panned it, f...