The Most Powerful Banker You've Never Heard of

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Editor's Note: This story is a corrected version of the story that ran in the magazine.

Lewis B. Kaden doesn't stand out among the high-powered executives on Citigroup's (C) organizational chart. He's one of three people who carry the title of vice-chairman, and he doesn't run a big revenue-generating business such as investment or retail banking. Kaden's official duties are largely administrative—human resources, government affairs, and philanthropy among them.