Senior Vice President

Peter Stahley is a senior policy strategist with deep expertise in energy, mining, permitting, and public lands. Since joining Cassidy & Associates, he has advised industry leaders, think tanks, and organizations on navigating federal policy, regulatory processes, and shifting political dynamics to deliver solutions and actionable insights.

Previously, Peter served as a key aide to Chairman Joe Manchin (I-WV) on the Senate Energy and Natural Resources Committee, where he shaped major provisions of the Inflation Reduction Act and the Infrastructure Investment and Jobs Act and led negotiations on permitting reform. His Senate portfolio spanned energy development, critical minerals and mining, permitting, and supply chain security.

Before Capitol Hill, Peter spent more than a decade with the National Park Service in Alaska, focusing on permitting and remote infrastructure, following an early career as a civil engineer in real estate development.

A Pennsylvania native, Peter holds engineering degrees from Columbia University and Stevens Institute of Technology and is a licensed Professional Engineer (P.E.) in Alaska. Outside the office, he enjoys cooking and spending time outdoors with his five children.