Before being exposed by Samuel Tilden and Thomas Nast, this New York politician and his cronies bilked over $30,000,000 from the city.  
Following arrest on a civil charge, he was imprisoned, but escaped and went to Cuba and then Spain.  A former bookkeeper, he was elected to the US Congress in 1852, but found greater opportunities returning to local politics as deputy street commissioner and deputy public works commissioner.  Before being exposed by Samuel Tilden and Thomas Nast, this New York politician and his cronies bilked over $30,000,000 from the city.  FTP name the boss.
Following arrest on a civil charge, he was imprisoned, but escaped and went to Cuba and then Spain.  
William "Boss" Tweed