From the Washington Post....
It's Not a Backroom Deal If the Call Is Made in the Oval Office
By Cindy Skrzycki
Tuesday, April 8, 2008; Page D02
"The conflict between Stephen L. Johnson, administrator of the Environmental Protection Agency, and Susan E. Dudley, head of regulatory review at the Office of Management and Budget, over how strong to make a standard on ozone, a component of smog, was unusual because President Bush was asked to break the impasse. He decided on a requirement weaker than what the EPA wanted."
The EPA standard for Ozone was announced a few weeks ago. After consultation with it's scientific advisers, the EPA suggested a secondary standard (for the natural environment not human health) which was calculated with an emphasis on plants and ecosystems. At the very last moment the White House after pressure from the Office of Management and Budget changed the EPA's initial recommendation. This decision was based not on science but on budgetary concerns... all the memos are on the web!