2nd time (2015, 2021) the permit has been canceled in addition to landowners (farmers, ranchers, Native Americans) and environmentalists who have been fighting it for years. Trudeau has requested reconsideration so as not to damage Canada-US Bilateral Relations and no doubt will be one of the subjects Biden & Trudeau discuss at their upcoming call which Biden has said would be his 1st call to a foreign leader. TC Energy may fight it in court but has said the project is suspended, as well as plans to raise capital to pay for the project. https://www.politico.com/news/2021/01/20/joe-biden-kills-keystone-xl-pipeline-permit-460555