Alberta Premier Alison Redford

President Barack Obama speaks at the southern site of the Keystone XL pipeline on March 22, 2012 in Cushing, Okla. (credit: Tom Pennington/Getty Images)

Alberta Premier: Obama Rejecting Keystone XL Pipeline Would Be ‘Significant Thorn’ in Canada-US Relations

If the Obama administration rejects the Keystone XL pipeline, it would be a significant thorn in Canadian-U.S. relations, Alberta’s premier said Wednesday.