CallHub
19 Case Studies
A CallHub Case Study
Sheila Cherfilus-McCormick’s campaign used CallHub’s SMS and MMS broadcast tools to scale voter outreach for the November 2021 primaries. Their challenge was to persuade and mobilize supporters efficiently while keeping costs down, reducing opt-outs, and avoiding over-messaging.
Using CallHub, the team built a targeted list of 90,000 “super voters,” ran A/B tests on message creative, and relied on MMS to send multimedia texts that drove traffic to Sheila’s campaign website. The result was an average 2% opt-out rate, well below the typical ~5%, and a successful persuasion and GOTV program that helped deliver the winning votes for Sheila Cherfilus-McCormick.