Billionaire Tom Steyer, a Democratic Party donor and Keystone XL foe, called on U.S. Secretary of State John Kerry to begin a review of the “defective” environmental analysis on the pipeline released last week. The final environmental impact statement on Keystone “has suffered from a process that raises serious questions about the integrity of the document,” Steyer, who hosted President Barack Obama at his San Francisco home in April, wrote to Kerry yesterday in a letter. Steyer is the former chief executive officer of the hedge fund Farallon Capital Management LLC and a major donor to Obama, who is being pressed by political supporters to reject the pipeline amid more signs it is headed for approval. TransCanada Corp. (TRP) ’s $5.4 billion project would carry Canadian oil sands crude to U.S. refineries in Texas . The State Department, which reviews all pipelines that cross international boundaries, […]