UPDATE 2-U.S. Senate fails to override Obama's veto of Keystone XL approval
March 04, 2015 at 17:24 PM EST
WASHINGTON, March 4 (Reuters) - The U.S. Senate failed on Wednesday to override President Barack Obama's veto of legislation approving the Keystone XL oil pipeline, leaving the controversial project to await an administration decision on whether to permit or deny it.