President Trump moved assertively on Tuesday to further dismantle his predecessor’s policies as he revived the Keystone XL pipeline that stirred years of debate over the balance between the nation’s energy needs and efforts to stem climate change.
Former President Barack Obama rejected the proposed 1,179-mile pipeline in 2015, arguing that it would undercut American leadership in curbing the reliance on carbon energy. Mr. Trump signed a document clearing the way to government approval of the pipeline as well as for the Dakota Access pipeline in North Dakota.





























