Canvassers go door-to-door using a voter file or targeted voter list to approach registered voters at their homes and gather petition signatures. This tactic has traditionally been used when collecting petition signatures to place a candidate on the ballot due to the fact that the signer must live in a certain district and be registered with a certain political party.
Even though this tactic requires more time and resources than street canvassing, there are still several reasons why collecting petition signatures at the door can be an extremely valuable tactic for many campaigns. The pros of collecting signatures through door canvassing include:
1. The ability to knock on doors of a targeted universe of voters who are likely to support your initiative.
2. The ease of having a longer and more complicated conversation at the door to help with issue/candidate messaging resonance.
3. Much higher signature validity rate and the ability to identify supporters and volunteers in certain areas.