Blockwalking (or foot canvassing) is the most common political canvassing technique in which volunteers or paid staffers walk door-to-door to initiate direct contact with individuals for political campaigning, grassroots fundraising, community awareness, membership drives, and more. Blockwalking is used by political parties and issue groups to identify supporters, persuade the undecided, add voters to the voters list through voter registration, and is central to get out the vote operations. It is the core element of what political campaigns call the ground game or field.