US debt soars 86% under Obama presidency to nearly $20 trillion — RT Business News
U.S. National Debt Clock FAQ
Watch debt grow in real time at the US Debt Clock | Boing Boing
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US National Debt Passes $28 Trillion, +$4.7 Trillion in 13 Months. General Treasury Account Down by $480 Billion in 2 Months, $620 Billion to Go | Wolf Street
U.S. National Debt Clock FAQ
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U.S. Debt Tops $15 Trillion Mark Today - ABC News
History of Debt in the United States
Real Time US National Debt Clock
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