Obama needs the environmentalist vote badly! He has not publicly threatened a veto option to legistration, specificly tax relief extensions, but rest assured he will use that veto power to kill the xl pipeline.
Canada has indicated that it will consider a oilsands pipeline to its west coast and sell to the Chinese if the XL is not approved soon.
Thats not an idol threat......processing of the oil sands has already put Canada in violation of the Kyoto (sp) accords indicating its commitment to sell the vast amounts of low grade oil available.
A most interesting situation has evolved here and in my opinion it all points to assuring the current US administration is a one term administration and that is all I can hope for.