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POPSClinton chief quits; lobbied for free trade deal Mark Penn, CEO of Burston-Marsteller, also advised Blackwater and represented Texas utilities attempts to build numerous coal-fired power plants over objections from environmental groups last year. Her chief campaign strategist, he was the CEO of an elite Washington lobbying firm, even while she criticized Obama in New Hampshire because his state campaign mgr there had lobbied at the state level.