Most Famous Black Hat

Ami Eden tells The Story of Jack's Hat:

A New York Times editorial urging enhanced congressional campaign-donation disclosure rules begins by stating that “Congress is still haunted by the black hat and easy-money grin of Jack Abramoff…”
It’s worth noting that the Forward cracked the mysteryof this black hat that is, apparently, still haunting Capitol Hill way back in January 2006: It’s a $200 Borsalino Como II fedora purchased by Abramoff from Brooklyn’s Bencraft Hatters.