FILE - In this Nov. 3, 2015 file photo, the Keystone Steele City pumping station, into which the planned Keystone XL pipeline is to connect to, is seen in Steele City, Neb. TransCanada filed a federal lawsuit in Houston on Wednesday, Jan. 7, 2016 alleging President Barack Obama's decision in November to kill the pipeline exceeded his power under the U.S. Constitution. (AP Photo/Nati Harnik, File)
Featured Photo Galleries
