I wonder if the party affiliation was on the envelopes

How to create an army of assets:

1. Indoctrinate them and get them to blindly follow you.
2. Give them a common enemy, your enemy.
3. The rest will be handled of their own volition! Boom! Instant sleeper-cell army. In this case all that you need to do is make sure the sleeper-cell army knows who is on their side and who isn't, by putting the party affiliation on the envelopes. You now don't even need a bunch of CIA agents on the ground cheating---your sleeper army will become the agents themselves and do the cheating, as they have opportunity!

I wonder if the party affiliation was on the envelopes