Tanvi Patel was Content Marketing Manager at CallHub and wrote more than 110 articles for the CallHub blog. Her research-led work covers door-to-door canvassing and canvassing software, the factors that drive voter turnout, voter ID laws, and political robocall rules. She also wrote practical guides for labor unions on organizing and union law, and for schools on parent notification systems. She drew on the outcomes of past campaigns run on CallHub to show which tactics hold up in practice.