Because DC has council members who represent individual wards AND council members who represent the whole city (at-large), you have some council members who supported the ban and some who opposed it. PLEASE CLICK ON BOTH LINKS to make sure you contact all your representatives.
At-Large council members: Grosso, Orange, Silverman
Wards: Allen, Evans, Nadeau
At-Large council members: Bonds, Mendelson
Wards: Alexander, Cheh, May, McDuffie, Todd