Proposed Keystone XL Pipeline To Run From Canada To Gulf Of Mexico

POLK, NE - OCTOBER 11: A political sign for Ben Sasse, a Republican running for U.S. Senate who supports the proposed Keystone XL pipeline, is seen directly across the street from the "Clean Energy Barn," which was built directly in the path of the proposed Keystone XL Pipeline and is equipped with solar panels and a wind turbine, on October 11, 2014 in Polk, Nebraska. The barn was built by Bold Nebraska, an organization opposed to the construction of the proposed pipeline. (Photo by Andrew Burton/Getty Images)