When it comes to domain knowledge of politics, you probably either know it or you don’t. If you’ve ever worked in progressive politics before, then you’re fine. If not, you can’t really learn it anyway.
Most importantly, try to volunteer for a local campaign doing literally anything.
1. You may note that Patrick Ruffini is a Republican operative. This guide owes him a substantial debt, if only because he’s exposed so much about the workings of Democratic analytics that this document can be freely distributed without fear of exposing too much. ↩