Madame President Clinton? Chelesa Clinton That Is

(ABC News) - Perhaps there will be a Madame President Clinton after all. No, not Sen. Hillary Clinton, D-N.Y. How about former first daughter and active campaigner Chelsea Clinton?

"If you asked me (if Chelsea would run for office) before Iowa, I would have said, 'No way. She is too allergic to anything we do.' But she is really good at it," former President Bill Clinton tells PEOPLE magazine in their latest issue, hitting newsstands Friday.

In the PEOPLE exclusive, Clinton called his daughter's "emergence" the "second best thing" of the campaign, after his wife's "ability to endure in the face of all the blows that have been rained on her: outspent, dismissed, denigrated, declared dead...when I met her, I found that in her personal relationships she lacked self-confidence and was painfully shy. She is having more fun now than at the beginning. If you look at her, she seems perfectly relaxed, doesn't she?"