In just a few years, the political debate over Keystone has exploded into an entire sector of the Washington influence economy. Funded by multibillion-dollar oil companies, labor unions and ultrarich environmentalists, the fight has filtered into every crack and crevice of the nation’s capital — all for a project some advocates on both sides privately concede wouldn’t be an environmental or economic game-changer.
http://www.politico.com/story/2014/05/keystone-xl-pipeline-transcanada-barack-obama-106473.html