Longtime Fox lobbyist Michael Regan is stepping down from his post as 21st Century Fox’s executive vice president of global public policy, effective June 30.

Regan has led Fox’s legislative and regulatory efforts in Washington, D.C. for 15 years. His portfolio was expanded three years ago to include all public policy initiatives globally.

Fox said a successor, who will be based in Washington, D.C., will be named shortly. Regan will continue on as an advisor in order “to ensure a smooth leadership transition.”

CEO James Murdoch said in a statement: “Our senior management has counted on, and valued, Mike’s thoughtful leadership on so many complex regulatory and legislative issues over his distinguished tenure. We are grateful for his guidance and many contributions during a dynamic period of global growth for our company.”

Regan joined News Corp. in 2001 to run the company’s Washington, D.C. office as senior VP of government affairs and was promoted to executive VP in 2004. In 2013, his portfolio was expanded globally, overseeing regional offices in Washington, London, Brussels and Hong Kong. He continued in that role at 21st Century Fox following the company’s separation into two distinct companies.

“It has been a great privilege to work with the most creative and inspiring people in the media and entertainment business and to advocate on their behalf before so many leaders and decision makers around the world,” said Regan. “I want to express my heartfelt thanks to Rupert Murdoch, Lachlan Murdoch, James Murdoch and Chase Carey for this extraordinary opportunity over the past 15 years.”

Prior to joining News Corp., Regan was senior VP of external affairs at NextWave Telecom. Previously, he worked as telecommunications counsel to the Committee on Commerce of the U.S. House of Representatives, where he advised on all telecommunications-related legislation, including the Telecommunications Act of 1996.