The Trump administration is leveraging an array of legal and political tools to roll back environmental protections. A U. Penn environmental law expert takes a look a Trump’s strategy, pitfalls that await, and the potential for protections to endure. -- The Trump administration is doing its best to fulfill its campaign promise to reduce environmental protections related to the energy industry and wider economy. Rollback efforts are taking place through a variety of means, including the issuance of an executive order that notably targets the Clean Power Plan, the defunding of government agencies with environmental oversight, and the use of an obscure rule that allows Congress to overturn standards issued in the final months the Obama administration. Yet the success of rollbacks isn’t assured. In some cases environmental protections exist due to legal requirement, and where rollbacks create a regulatory vacuum, new rules must take their place. University of Pennsylvania law professor Cary Coglianese explores the administration’s options to pare environmental rules and the challenges each approach is likely to face. Coglianese also takes a look at possible routes to defend protections. Cary Coglianese is professor of law and political science at the University of Pennsylvania and Director of the Penn Program on Regulation. He specializes in the study of regulation and regulatory processes and has served as an advisor to the U.S. Department of Transportation and Environmental Protection Agency. He is the founder of The Regulatory Review, the flagship publication of the Penn Program on Regulation.