Targeted canvassing is the practice of contacting a deliberately selected subset of voters rather than entire neighborhoods, using voter files, modeling scores, and segmentation to maximize the return on volunteer hours. Campaigns typically draw from a national or state voter registration file, merge it with consumer data, past turnout history, and survey responses, then assign each voter scores such as a support score (likelihood of backing the candidate), a turnout score (likelihood of voting), and sometimes an issue score. Field organizers then generate walk lists or call lists limited to households that fit a strategic profile — for example, low-propensity supporters for a get-out-the-vote (GOTV) push, or persuadable independents for a contrast message.
The approach grew out of academic field experiments, most influentially Donald Green and Alan Gerber's randomized trials beginning in the late 1990s, which found that in-person canvassing produced measurably larger turnout effects than mail or robocalls. Subsequent campaigns industrialized the method: the 2004 Bush-Cheney "72-Hour Project" and the 2008 and 2012 Obama campaigns are commonly cited as inflection points in data-driven targeting, integrating tools such as the Democratic VoteBuilder (NGP VAN) and the Republican Data Trust / i360 ecosystems.
Targeted canvassing differs from blanket canvassing, which works every door on a street, and from persuasion mail or digital ads, which are cheaper per contact but generally less effective at moving behavior. It is usually paired with scripts tailored to the segment, and increasingly with follow-up contacts tracked in a customer-relationship-management database.
Critics raise concerns about privacy, since matched voter files can include party registration, modeled ethnicity, and consumer attributes, and about representation, because voters scored as unlikely supporters may receive no contact at all. Regulators in the EU have scrutinized such practices under the GDPR, while U.S. voter file access is governed primarily by state law.
Example
In the 2012 U.S. presidential race, the Obama campaign's Chicago-based analytics team used individual-level support and turnout scores to direct volunteers to specific doors in battleground states such as Ohio and Florida.
Frequently asked questions
Microtargeting is the broader analytic process of segmenting voters by modeled traits; targeted canvassing is one channel — door-to-door or phone contact — through which that segmentation is acted on.
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