We have a scientific consensus around this issue. We also need a political consensus," said Christine Todd Whitman, the former New Jersey Governor and first EPA administrator under President George W. Bush, who resigned her post after disagreeing with the White House's direction on pollution rules. Whitman was joined by William Ruckelshaus, the nation's first EPA administrator under President Richard Nixon, William Reilly, who led the EPA under President George H.W. Bush, and Lee Thomas, who was administrator under Reagan.