A plan to block the EPA from regulating greenhouse gas emissions is gaining momentum, but Senator Jay Rockefeller (D-WV) is playing the spoiler to the growing bi-partisan effort to stop the federal agency’s power grab. With the exception of Rockefeller, all of the members of the West Virginia congressional delegation — Republican and Democrat — support the Energy Tax Prevention Act of 2011. It would limit the EPA’s power to regulate greenhouse gas emissions. Obama ordered the EPA to regulate them, based on a Supreme Court ruling, after his cap-and-trade proposal failed on Capitol Hill. The House Energy and Commerce...