A federal judge on Thursday blocked the construction of TransCanada's $ 8 billion Keystone XL Pipeline, delivering a great victory to environmentalists and making a blow to the Trump administration. US District Judge Brian Morris of Montana violated a permit for the 1,179 kilometer pipeline structure, given by the Trump Administration last year, saying that the grounds for approval of the project were insufficient. Morris took a particular problem with the apparent disagreement with the Trump Administration's climate change and criticized state ministry, which analyzed the project, not to take into account the effects of possible oil spills and greenhouse gas emissions. "An agency can not just ignore contradictory or inconvenient factual rules as it made earlier, anything more than ignoring the inconvenient facts when writing on an empty slate," Morris wrote. The decision is made after TransCanada has already attempted to deliver pipes to Montana in preparation to begin construction in 201[ads1]9. Critics have long claimed that an oil spill can destroy the water system used by native American tribes and damage the wildlife of Montana where the pipeline should cover about 250 miles of land. The pipeline construction, which would be used to transport petroleum from Canada to the Gulf Coast in the United States, was rejected during the Obama administration in 2015.