The controversial Keystone XL pipeline to bring more US and Canadian oil to Gulf Coast refineries is back in the news. US President Donald Trump is pitching the company behind the project, TC Energy, to return to the US and “get it built – NOW!” “I know they were treated very badly by Sleepy Joe Biden, but the Trump Administration is very different — easy approvals, almost immediate start!” Trump wrote on his platform Truth Social Monday night. The rationale for Keystone was a way to bring together booming US…