Why Hillary's Former Operative Bought a Hollywood Box-Office Tracking Firm – The Hollywood Reporter
Trump met with ex-Bill Clinton pollster Mark Penn to discuss impeachment | CNN Politics
282: Harnessing the Promise of the Digital Revolution with Stagwell's Mark Penn – Marketing Today with Alan B. Hart
Microsoft Sheds Political Ace Mark Penn, Steve Ballmer's Harvard Peer
Microtrends Squared | Book by Mark Penn, Meredith Fineman | Official Publisher Page | Simon & Schuster
Mark Penn (@Mark_Penn) / Twitter
Clinton's chief strategist steps aside
Microtrends Squared] | C-SPAN.org
Stagwell Invests In MDC, Mark Penn Named CEO
Mark Penn on building Stagwell, his political and polling background | Ad Age
Former Clinton Adviser Mark Penn Turns His Coat for Trump
Microsoft Battles Google by Hiring Political Brawler Mark Penn - The New York Times
Mark Penn: The man who blew the presidency | The Independent | The Independent
Former Hillary Clinton aide Mark Penn leaving Microsoft - POLITICO
Mark Penn Behind Push to Block Nancy Pelosi's Bid to Be House Speaker
Mark J. Penn | Meridian International Center
Mark J. Penn - The Stagwell Group
Stagwell CEO Mark Penn discusses second-quarter earnings report | Ad Age
Mark Penn | Milken Institute
Stagwell | Meet Mark - Stagwell
Mark Penn - Chairman and CEO - Stagwell | LinkedIn
Mark Penn exits Microsoft to found investment firm | PR Week
Why Mark Penn Is Sounding Trumpy - POLITICO Magazine
Mark Penn: MDC-Stagwell will take on 'bloated and outdated' holding companies | Campaign US
Mark Penn: evolving the agency model | PR Week
Mark Penn's Stagwell Group Will Acquire SKDKnickerbocker - The New York Times
Agency Transformation: An Interview with Mark Penn, Chairman and CEO, MDC Partners | Customer First Thinking
