"In early 2005, an environmental lawsuit of tremendous importance was barreling toward oral arguments in America's second-highest court.
The case would determine whether EPA could regulate heat-trapping gases that cause climate change. A career attorney at the Justice Department who had been working the case for years was slated to argue it.
It would be a career-making hearing in the legal world. But at nearly the last minute, word came down from the highest levels of the Justice Department: A political appointee would argue Massachusetts v. EPA at the U.S. Court of Appeals for the District of Columbia Circuit instead.
It was Jeffrey Bossert Clark."