A tough part of sales is lead generation. Getting a list of people that might align with your product in order to sell them that product is HARD.
A classic political means to do so is a petition. An example:
https://www.newbrunswickpc.ca/trudeausplan
Is a masterclass in lead generation. Please provide your name, address and phone number and I'll be sure to kick Trudeau in the shins for you. And in the same breath, paint Holt and Trudeau as almost being in a relationship (well, Justin does like blondes....)
Brilliant.