Following the campaign , de Blasio was an aide in City Hall .
De Blasio 's introduction to city politics came in 1989 , when he worked as a volunteer coordinator for David Dinkins ' mayoral campaign .
Following the campaign , de Blasio was an De Blasio in City Hall .
De Blasio 's introduction to city politics came in 1989 , when he worked as a volunteer coordinator for David Dinkins ' mayoral campaign .