Baltimore city is the home of the character that might be based on John Capozzi.
John James Capozzi, Jr. (D) served as the second District of Columbia Shadow U.S. Representative, during 1995-1997 and is a former 17 year at-large member of the District of Columbia Democratic State Committee. 
 Capozzi is considered the possible inspiration for the character Tommy Carcetti in the HBO drama "The Wire". 
Thomas J. "Tommy" Carcetti ( ) is a fictional character on the HBO drama "The Wire", played by Aidan Gillen. 
 Carcetti is an ambitious Baltimore politician who begins the series with a seat on the city council. 
