I think 2A/RKBA, drugs (== black/latino community, generally; white people rarely go to prison for drugs and white/asian communities aren't torn apart by the drug war), and maybe people with garden-variety secrets (cheating on a spouse, cheating on taxes, looking at questionable porn, etc.) are the strongest natural allies in terms of turning out the votes. These are pretty evenly split left/right.
Funding could be from cloud providers who are getting screwed; even Google probably loses a marginal $100mm due to this issue, so for them funding a PAC with $25mm would be a rational choice. Plus, being anti-NSA is a great recruiting/retention thing for employees, so any worthwhile tech company could probably justify PAC support just as an HR and marketing expense.
You could probably get the tea party side, and civil libertarians in general, for free, but they're not a meaningful political bloc. The problem is at least some of the tea party side would be pro-military and might view support of NSA as supporting the military.
Funding could be from cloud providers who are getting screwed; even Google probably loses a marginal $100mm due to this issue, so for them funding a PAC with $25mm would be a rational choice. Plus, being anti-NSA is a great recruiting/retention thing for employees, so any worthwhile tech company could probably justify PAC support just as an HR and marketing expense.
You could probably get the tea party side, and civil libertarians in general, for free, but they're not a meaningful political bloc. The problem is at least some of the tea party side would be pro-military and might view support of NSA as supporting the military.