From PennFuture (http://www.pennfuture.org):
To our great relief (and with the vote of both Pennsylvania senators, Arlen Specter and Bob Casey), common sense prevailed and the U.S. Senate defeated (http://www.ucsusa.org/news/press_release/senate-rejects-murkowski-0406.html?utm_source=SP&utm_medium=head&utm_campaign=murkowski06-09-10-head) an attempt by Sen. Lisa Murkowski (R-Alaska) to strip the U.S. Environmental Protection Agency (EPA) of its authority to regulate global warming pollution. Had this effort succeeded (http://solveclimate.com/blog/20100611/murkowskis-bid-repeal-science-and-block-epa-fails-u-s-senate-53-47), it would have struck a mortal wound to the plans to pass climate change legislation. The vote was 53-47 against Murkowski.
But we’re not out of the woods just yet. We’re hearing troubling murmurings from the Casey folks that they may introduce legislation that would temporarily hamstring EPA.