Jenner & Block

Will Dreher is a litigator and a member of the Energy and Appellate and Supreme Court Practice groups.  His practice focuses on energy and the environment.



Mr. Dreher has advised several major generation companies on state energy legislation and has represented clients seeking to defend the constitutionality of state energy and climate initiatives against preemption and dormant Commerce Clause claims.  He also advises clients, including environmental non-profit organizations, on appropriate litigation strategies in response to various federal administrative and legislative actions affecting the environment, such as permitting decisions and public lands designations.  Mr. Dreher also has an active pro bono practice.  He has helped author amicus briefs in a variety of cases, including on behalf of two clean energy non-profit organizations in a suit regarding state energy efficiency incentive programs and on behalf of law professors in a suit regarding the extraterritorial reach of the Constitution.

Mr. Dreher received his B.S.F.S. in 2009 from Georgetown University’s School of Foreign Service.  He received his J.D. in 2013 from Harvard Law School, where he served as a Notes Editor of the Law Review and an Editor of the Environmental Law Review and represented indigent criminal defendants through the Criminal Justice Institute.

Prior to joining Jenner & Block, Mr. Dreher clerked for Judge Brett M. Kavanaugh of the U.S. Court of Appeals for the D.C. Circuit and Justice Elena Kagan of the U.S. Supreme Court.