Sen. Mark Pryor is a moderate who has voiced concerns in the past about passing climate policy, but has been relatively quiet this year. He is regularly listed among the Democrats most likely to oppose a climate bill.
Pryor has expressed interest in increasing his state’s contribution in the biofuels sector, however, which might help win his vote. He says on his Senate website, “As part of [the effort to move our country toward energy independence], I believe that we must move beyond oil, gas, and coal and focus on cleaner alternatives and new sources of energy, including renewable fuels. Arkansas, in particular, is rich in biodiesel resources, such as soybeans and rice, and also has an abundance of natural gas resources, such as the Fayetteville Shale. As your Senator I will fight to help Arkansas become a leader in the new energy economy.”
Pryor recently introduced legislation with noted climate-change denier James Inhofe (R-Okla.) to promote the use of natural gas vehicles.
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Earlier this year, Pryor voted against using the budget reconciliation process to pass climate policy. Last year, he signed the letter from 10 swing-vote Democrats explaining why they would have opposed final passage of the Lieberman-Warner Climate Security Act.
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Find out about other senators by clicking on their names in the right column.


Kent Conrad (D-N.D.)
Mark Begich (D-Alaska)
Blanche Lincoln (D-Ark.)
Claire McCaskill (D-Mo.)
Tim Johnson (D-S.D.)
Jay Rockefeller (D-W.Va.)
Jim Webb (D-Va.)
Debbie Stabenow (D-Mich.)
Mary Landrieu (D-La.)
Sherrod Brown (D-Ohio)
Byron Dorgan (D-N.D.)
Lamar Alexander (R-Tenn.)
Olympia Snowe (R-Maine)
Judd Gregg (R-N.H.)
Mike Crapo (R-Idaho)
Bob Corker (R-Tenn.)
John McCain (R-Ariz.)
Mark Pryor (D-Ark.)
Robert Casey (D-Penn.)
Roland Burris (D-Ill.)
Kay Bailey Hutchison (R-Texas)
Chuck Grassley (R-Iowa) [UPDATED]
Lisa Murkowski (R-Alaska) [UPDATED]
Lindsey Graham (R-S.C.)
Evan Bayh (D-Ind.) [UPDATED]
George LeMieux (R-Fla.)
Robert Byrd (D-W.Va.) [UPDATED]
Mark Udall (D-Colo.)
Michael Bennet (D-Colo.)
Ben Nelson (D-Neb.) [UPDATED]
Joe Lieberman (I-Conn.)
Jon Tester (D-Mont.)
Kay Hagan (D-N.C.)
Dianne Feinstein (D-Calif.)
Arlen Specter (D-Pa.) [UPDATED]
Carl Levin (D-Mich.) [UPDATED]
Roger Wicker (R-Miss.)
Mark Warner (D-Va.)
Richard Lugar (R-Ind.) [UPDATED]
Dick Durbin (D-Ill.)
Al Franken (D-Minn.)
George Voinovich (R-Ohio) [UPDATED]
Charles Schumer (D-N.Y.)
Daniel Akaka (D-Hawaii)
John Cornyn (R-Texas)
Susan Collins (R-Maine) [UPDATED]