A reported threat by US President Donald Trump to withdraw from the North American trade pact could push Canada closer to China, analysts say, even as his new global 15 per cent tariff has little immediate impact due to existing trade agreements.Washington, Ottawa and Mexico City are set to renegotiate terms of the US-Mexico-Canada Agreement (USMCA) before a possible extension on July 1. Earlier this month, Bloomberg reported that Trump was quietly considering exiting the trade deal –...