Photo Illustration; Gramm: Douglas Healey / AP; Getty

As chairman of the Senate Banking Committee from 1995 through 2000, Gramm was Washington's most prominent and outspoken champion of financial deregulation. He played a leading role in writing and pushing through Congress the 1999 repeal of the Depression-era Glass-Steagall Act, which separated commercial banks from Wall Street. He also inserted a key provision into the 2000 Commodity Futures Modernization Act that exempted over-the-counter derivatives like credit-default swaps from regulation by the Commodity Futures Trading Commission. Credit-default swaps took down AIG, which has cost the U.S. $150 billion thus far.

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