Ken Christensen hasn't changed much since 2016 when he was working under the name Ken Christensen and Associates. He's still peddling the same list of AFL-CIO union members with the caveat that he has no idea if they are accurate. He sells information that is readily available on the internet for exorbitant prices.
If you are a politician, find an intern, Google AFL-CIO affiliates, and have them spend about 8 hours pounding out contact information. You'll be no worse off for the information, and you'll have saved enough to buy a week's worth of advertisement on your local broadcasting network.