Is Keystone XL DOA in Term No. 2?

"You have the authority under existing law to achieve urgently needed reductions in the carbon pollution that is disrupting our climate and damaging our health. Most significantly, you can set standards that cut carbon pollution from America’s aging power plant fleet at least 25 percent by 2020 while boosting energy efficiency and shifting to clean energy sources. Power plants are our largest source of carbon pollution and you have the authority and responsibility to clean them up under the Clean Air Act," states the letter. "This will create tens of thousands of clean energy jobs, meet the pollution targets you set for the country, and restore U.S. international leadership."

In asking that the president who touted his "all-of-the-above" energy strategy on the campaign ditch "dirty fuels," the environmentalists ask him to heed the advice of climate scientists who say "80 percent of existing fossil fuel reserves need to be kept in the ground."

"More specifically, the Keystone XL tar sands pipeline is not in our national interest because it would unlock vast amounts of additional carbon that we can’t afford to burn, extend our dangerous addiction to fossil fuels, endanger health and safety, and put critical water resources at risk," they write.

If Obama kills Keystone, he'll be able to pass the bulk of the blame onto someone who would happily take the heat from oil and gas companies -- and the many members of the public who believe that nixing Keystone means killing jobs.

A southern portion of the pipeline, from Cushing, Okla., to the Gulf of Mexico, has long since been approved (and touted by Obama as proof of his friendliness to fossil fuels). But the yet-to-be-approved segment crosses the border from Canada -- meaning that approval goes through the State Department.

And set to take over from the retiring Hillary Clinton, barring any unexpected nomination block, is Sen. John Kerry (D-Mass.).

Kerry, who's occupied much of the Senate floor schedule with extensive monologues about the dangers of global warming. Kerry, who's lauded as a "champion for climate issues" by the same groups lobbying Obama to bury Keystone.

The State Department is finalizing a supplemental environmental impact statement (SEIS), due any day now, on the Keystone project. The administration could use any number of means -- waiting on Nebraska, finding the need for additional reviews, etc. -- to delay a final decision.

As chairman of the Senate Foreign Relations Committee, Kerry in an October 2011 statement vowed to "leave no question unanswered including every possible economic and environmental consideration before a final decision is made" on Keystone.

Some liberals are suspicious considering that TransCanada hired lobbyists linked to Clinton, Obama, and Kerry in its 2011 push for the pipeline.

But in 2013, the re-election campaign is done and those weak links would likely have little impact on the president's drive to script a legacy to his liking.