Lindsay Mark Lewis has been the executive director and a board member of the Progressive Policy Institute (PPI) since 2010.

Besides his involvement in all PPI projects, he focuses on building policy dialogues with mayors, governors, House and Senate members, the Administration and expanding the PPI reach into international policy and idea connections. He spends significant time in Europe engaging stakeholders in Brussels and individual member states policy leaders. He has led PPI efforts into Australia, Japan, Vietnam, Indonesia, Argentina and other key high growth and innovative regions of the globe.

Prior to joining PPI, Lewis spent over 20 years working for U.S. policymakers and campaigns. From 2005 to 2006 he was the national finance director of the Democratic National Committee, including the launch of the Democracy Bonds under his leadership. Among his other forays into U.S. politics he has held senior positions with Democratic leadership in the U.S. House, with U.S. senators, governors and mayoral campaigns.

He is the author of the book Political Mercenaries and his opinion pieces have appeared in the New York Times, Daily Beast, Los Angeles Times, The Atlantic and many other regional papers. He has been featured on NPR, C-SPAN and other media outlets.