An activist adjusts his hat while protesting the Keystone XL Pipeline during the Native Nations Rise protest on March 10, 2017 in Washington, DC. The KXL has been at the center of a contentious fight for a decade. Brendan Smialowski / AFP / Getty Images
"Keystone XL has undergone years of extensive environmental review by federal and state regulators," TransCanada spokesman Matthew John told
Omaha World-Herald. "All of these evaluations show that Keystone XL can be built safely and with minimal impact to the environment."