Former President Donald Trump on Friday slammed union leaders for supporting President Joe Biden and held them responsible for “thousands of jobs” being lost following the cancellation of the Keystone XL pipeline earlier this week.

“The union representing the great workers building the Keystone XL Pipeline endorsed Biden,” Trump said in a written message. “Now their workers have no jobs and the pipeline, which was well under construction (like the Southern Border Wall), has been shut down, with thousands of jobs lost and the company announcing yesterday that they are ‘permanently pulling out.'”