Foil: Your right to Know.
You can find out who is making donations to local and state politicians and what the politicians are spending that money on at a website maintained by the Department of State. All are required to file regular reports on the donations and expenditures, and you can look up those reports here. One trick used by politicians to make it more difficult to find their reports is to use a vague or unrelated name. Enter that name in the search field and you will find the secondary sources of funding.