On Wednesday, the Senate rejected an amendment proposed by Sen. Mitch McConnell (R-KY) that would have blocked EPA's plans to regulate greenhouse gases (GHGs) under the Clean Air Act. The legislation was offered as an amendment to a small business bill that the Senate has been working on for several weeks. The amendment received the support of all but one Senate Republican, Sen. Susan Collins (ME), and was also supported by four Democrats, Sens. Joe Manchin (WV), Ben Nelson (NE), Mary Landrieu (LA), and Mark Pryor (AR). On the same day, the Senate rejected three more moderate attempts to limit or postpone EPA's regulations, primarily because they were opposed by Republicans as not going far enough to curb EPA's plans. The sponsor of one of those amendments, Sen. Jay Rockefeller (D-WV), a long-time critic of EPA's GHG regulations, strongly criticized Senate Republicans for supporting an amendment that had no chance of passing, rather than his proposal to postpone EPA's regulations for two years.
On Thursday, the House passed Rep. Upton's (R-MI) bill that is almost identical to Sen. McConnell's amendment by a wide margin, 255-172. The Administration has already promised a veto of this bill, if it were to somehow get through the Senate.