Keystone Foes Fight Trump's Approval in Saga's Latest Twist

  • Lawsuit filed by groups including Bold Alliance, Sierra Club
  • They argue federal permit relied on outdated assessment

Miles of unused pipe, prepared for the proposed Keystone XL pipeline, sit in a lot on Oct. 14, 2014 outside Gascoyne, North Dakota. 

Photographer: Andrew Burton/Getty Images

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Just as TransCanada Corp.’s Keystone XL pipeline finally seemed ready to roll, activists are taking one more shot at stopping it.

A year after President Donald Trump gave the O.K. for the line to be built, groups including Bold Alliance and Sierra Club argue in a motion that the federal decision short-circuited the review process, relying on an outdated environmental assessment.