Congress won’t act this year to block the Obama administration from regulating greenhouse gas emissions, a key coal state senator said Wednesday. reports that Sen. Jay Rockefeller (D-W.Va.) acknowledged that his bid to block the Environmental Protection Agency’s global warming policies is only a "message" bill that doesn't have any chance of making it into law.

Rockefeller has extracted a promise for a floor vote before the end of the year on legislation that would handcuff EPA’s ability to write climate-themed rules for two years on power plants and other stationary sources.

But with aides to President Obama signaling that the White House would veto his bill, Rockefeller said he’s prepared for defeat.

“The point is the message," Rockefeller told reporters. "I want to have it happen. I want to have him not veto it.”

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