Handwritten postcards sent as “chasers” after voter registration materials can have a significant positive impact on the odds that someone would return their materials (12% to 20% higher in different studies). The postcard chaser appears to work particularly well among people who had been registered before and just recently moved to their new address (18% higher). Postcards sent prior to voter registration materials can also increase the odds, though not as much as those sent after the materials. ( https://sisterdistrict.com/research/voter-registration- postcards-replication) (Wasmuth, M., Newby, R.)
