Penn Strategy Memo, April 8, 2007:
With Obama's popularity and fund-raising strength becoming clearer by the day, Penn seemed to absorb the public criticism of Clinton as behaving imperiously. "Show more of the happy warrior," he counseled. He was also becoming attuned to the importance of the "change" theme Obama was touting: "Let's talk more about a movement for change coming from the people." He proposed the slogan "America is Ready for a Change, and HRC is Ready to Lead Us."