Claim: Says President Barack Obama's own administration has done five environmental impact assessments of the Keystone XL pipeline, "all of which have said it would have a minimum impact on the environment."
Fact-check: Thune says Keystone XL pipeline has minimal impact on environment
Verdict: half-true
Organisation: PolitiFact
Author: Jon Greenberg
Date published: 2015-01-04T00:00:00