"I think people confuse those judgments with the tough judgments that candidates like Sen. Clinton make on the hard issues, and I think she's out there every day talking about ending the Iraq War, about having universal health care and ending our dependence on foreign oil," he said.
Penn has taken some heat for the many hats he is wearing these days. In addition to his work for Clinton, he is the CEO of Burson Marstellar. The PR giant represents Cinta Corp., which is resisting pressure to unionize its work force, a position that many union heads have openly criticized.
But Penn spends most of his time on the Clinton campaign. He averages about five hours of sleep a night and lives on Diet Coke. He said that the intensity of this campaign has only started. "You never get through one of these primary campaigns without a near-death experience," he said. "It's never happened. There have been nothing but steady days, but we take nothing for granted."