"U.S. President Barack Obama still wants to hear from other federal agencies before deciding whether to accept the State Department's finding that the Keystone XL pipeline would have no major impact on climate change, his top aide said on Sunday."

"White House Chief of Staff Denis McDonough said Obama would decide once the Environmental Protection Agency, Energy Department and other federal experts offer their assessments of the State Department review, as well as their own analysis.

But McDonough offered no word how soon Obama may rule."

Thomas Ferraro and Sandra Maler report for Reuters February 4, 2014. [2]