In the wake of the Citizens United case and other court rulings, there’s an unprecedented amount of money sloshing around in American politics. The volume of coverage that money attracts might be unprecedented, too—at least at the highest levels. Even amid the disruption and pressures on the journalism industry, the nation’s top newspapers delivered steady coverage of the campaign-finance beat during last year’s election. Newer web-first outlets across the ideological spectrum provide a lot of follow-the-money coverage, too.

But step down to lower levels of government, and the quantity and ambition of coverage falls off sharply—even though the search for political influence, and the opportunity for stories, is just as rich. The post-Citizens United landscape at the state level, says John Dunbar, managing editor of political coverage at the Center for Public Integrity, “is an undiscovered country.”

Thanks to a set of hires announced earlier this month, CPI is positioned to be a leader in mapping that terrain. Data reporter Ben Wieder, previously at the nonprofit news organization Stateline, and Alan Suderman, of the DC-based alt-weekly Washington City Paper, are joining the center’s Consider The Source project, which was established after the Citizens United ruling to track spending by groups looking to influence politics. CPI also announced the hiring of Polk Award winner Alison Fitzgerald, formerly of Bloomberg, to oversee its financial coverage and much of its state-level money-in-politics reporting, and Dan Wagner, who comes from the AP to do in-depth finance reporting.

The new hires, Dunbar says, will allow the project to better track the role of political money and the effects of shifting campaign-finance regulations at the state level. Down-ticket races are both most susceptible to the influence of outside money and yet often least reported on, he said. “At the state level, I think there’s a real need for context.” (Disclosures: Dunbar has written for CJR; CJR has also written frequently, and not always positively, about CPI.)

The shrinking corps of statehouse reporters is well-documented, and the reporters who remain often have limited time to devote to enterprise or investigative work. Wieder, the data reporter, says he knows of an AP bureau where reporters were instructed to do daily reporting from Monday through Thursday and only work on enterprise coverage on Fridays.

That doesn’t leave much time for unraveling the complexities of outside spending in state races—and it’s nothing if not a complex subject. While super PACs that influence federal campaigns must disclose their donors to the Federal Elections Committee, disclosure rules at the state level vary from state to state—so reporting techniques that work in one race might not work in another.

That complexity is in part a consequence of Citizens United, Dunbar explains. Before the Citizens United decision, 24 states simply banned political activity by corporations and/or unions. The ruling—and a subsequent 2012 ruling that declared that Citizens United superseded state laws—gutted those measures, though some remain on the books. Many of those states have rushed to pass disclosure rules in the last few years, and while some of those laws are stringent, others require only minimal disclosure.

“States are kind of all over the map with what they require people to disclose,” says Wieder, who will focus on outside spending. “That’s one of the first steps, figuring out the universe. What are we actually working with? How many places are actually going to have readily available information?”

Some of the information comes from the National Institute for Money in State Politics, which is basically a clearinghouse for campaign finance data. (CJR’s Mary Winter wrote about the institute here and here, and about the challenge of reporting on state-level super PACs here.) Once he gets that data, Wieder says he can just perform “standard campaign finance data reporting—which would just be going through the data, analyzing it, figuring out who’s giving, how much they gave, what they bought.”

But Consider the Source is focused on all spending that influences politics, not just campaign donations. And some of that spending can be very difficult to track down.

Peter Sterne is an editorial intern at CJR. Follow him on Twitter @petersterne.