 The Trump administration has pressed ahead with new pipeline construction but several projects have been stalled by successful legal challenges saying the administration is not applying careful regulatory scrutiny. Last month, a Montana judge ruled the Army Corps authorized permits to cross streams without properly consulting other federal agencies on endangered species. Rather than limit its ruling to the Keystone XL crude pipeline case before the court, the judge questioned the Army Corps method of authorizing stream crossing under the entire National Permit 12 program. 