Labour Minister Steven MacKinnon tells Power & Politics that Canada 'will retaliate' against 25 per cent U.S. steel and aluminum tariffs set to kick in at midnight in a way that will 'inflict economic harm on the U.S.' The threat comes after Ontario Premier Doug Ford suspended his 25 per cent surcharge on electricity exports to some northern states. Then CBC's Washington reporter Katie Simpson has the latest from D.C. and the Power Panel weighs in on the day's tariff whiplash. »»» Subscribe to