On this week’s show: Canada’s ambassador to the U.S. Kirsten Hillman reflects on President Joe Biden’s move to cancel the Keystone XL pipeline. Carleton University’s Philippe Lagassé examines the implications of a vacant vice-regal office. Plus, the CBC’s Catherine Cullen recaps a turbulent week for the Conservatives, three MPs look ahead to Monday’s return to Parliament and Japan’s ambassador to Canada discusses shared green energy goals.