"WASHINGTON — As a corporate lawyer, William L. Wehrum worked for the better part of a decade to weaken air pollution rules by fighting the Environmental Protection Agency in court on behalf of chemical manufacturers, refineries, oil drillers and coal-burning power plants.
Now, Mr. Wehrum is about to deliver one of the biggest victories yet for his industry clients — this time from inside the Trump administration as the government’s top air pollution official.
On Tuesday, President Trump is expected to propose a vast rollback of regulations on emissions from coal plants, including many owned by members of a coal-burning trade association that had retained Mr. Wehrum and his firm as recently as last year to push for the changes."