[Lumper20]

I recall his PAC used Email to raise funds so the direct mail expense is non existent. The costs have most likely been salaries.

[House Atreides]

“I recall his PAC used Email to raise funds so the direct mail expense is non existent. The costs have most likely been salaries.”
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That’s probably correct. And any “direct mail expense” costs may have been spent on “affiliated” (e.g., wife, relative or friend’s business) direct mail operatives. These political professions feed one another.