FILE - In this March 22, 2012 file photo, President Barack Obama arrives at the TransCanada Stillwater Pipe Yard in Cushing, Okla. His re-election safely behind him, President Obama is facing mounting pressure to settle a decision that has been trailing him for years: whether to approve the $7 billion proposed Keystone XL pipeline between the U.S. and Canada. (AP Photo/Pablo Martinez Monsivais, File)

Associated Press
FILE - In this March 22, 2012 file photo, President Barack Obama arrives at the TransCanada Stillwater Pipe Yard in Cushing, Okla. His re-election safely behind him, President Obama is facing mounting pressure to settle a decision that has been trailing him for years: whether to approve the $7 billion proposed Keystone XL pipeline between the U.S. and Canada.  (AP Photo/Pablo Martinez Monsivais, File)
FILE - In this March 22, 2012 file photo, President Barack Obama arrives at the TransCanada Stillwater Pipe Yard in Cushing, Okla. His re-election safely behind him, President Obama is facing mounting pressure to settle a decision that has been trailing him for years: whether to approve the $7 billion proposed Keystone XL pipeline between the U.S. and Canada. (AP Photo/Pablo Martinez Monsivais, File)
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