$47 billion estimated net worth
The Chairman and CEO of Berkshire Hathaway, Warren Buffett, helped launch The Giving Pledge. But even if he wanted to, the Oracle of Omaha wouldn't make a dent in America's national debt, rated at $13.3 trillion as of 5PM EDT according to USDebtClock.org. Indeed, his entire estimated net worth of $47 billion would pay off just about 0.0035% of that debt.
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