Chlorpyrifos is some really nasty shit that shouldn't be out there on the store shelves, but thanks to Scott Pruitt and our good friends at Dow Chemical it is. So it's fitting that Scott Pruitt, the errand boy for polluters and environmental poisoners everywhere should go out this way. Source: The Week While The Late Show was on break last week, President Trump ousted scandal-plagued Environmental Protection Agency head Scott Pruitt.