Trump teases a ‘Keystone XL’ revival, but Canadian energy experts say a similar pipeline is already underway Toronto StarCould Donald Trump revive the Keystone XL pipeline? The Globe and MailKeystone XL: What Trump’s focus on an oil pipeline says about Canada-U.S. trade CBCWhat is Keystone XL—and why does Trump want to bring it back to life? Global NewsDonald Trump proposed reviving the Keystone XL pipeline. Does Canada still want it? Financial Times