The 2020 presidential race cost roughly $14.4 billion, according to the nonpartisan research group OpenSecrets. The 2022 midterms ran about $8.9 billion. To put that in perspective, Americans spent more on the 2020 election cycle than they did on running shoes or toothpaste that year.

But the headline number obscures a stranger truth. The money flowing into American politics does not come mostly from ordinary voters writing $50 checks. It comes from a relatively small pool of wealthy donors, corporations, unions, and a growing class of outside groups that operate under rules most people have never heard of. Understanding where that money comes from, and where it goes, is the difference between watching politics and understanding it.

The Two Pots: Candidate Committees vs. Outside Groups

Campaign money splits into two broad categories. The first is money given directly to a candidate's campaign. The second is money spent by independent groups that support or oppose candidates but are legally barred from coordinating with them.

The first pot is tightly regulated. Federal law caps how much an individual can give to a single candidate: $3,300 per election as of the current cycle, with primary and general elections counted separately. That means a donor can hand one House candidate $6,600 total across both races. A married couple can double it.

Those caps sound restrictive until you look at the total. In the 2022 cycle, individual donors giving $200 or more supplied roughly 70 percent of all money raised by House and Senate candidates, according to Federal Election Commission data analyzed by OpenSecrets. Donors giving less than $200 made up the rest. The small-dollar donor is real, but the big check still dominates.

The second pot is where things get wild. Super PACs, created after the Supreme Court's 2010 Citizens United decision and a related lower court ruling, can raise and spend unlimited amounts. They cannot give money directly to candidates or coordinate with them. But they can run ads, send mail, and pay for just about any communication that stops short of explicitly telling voters to elect someone.

In the 2022 cycle, outside spending topped $2.4 billion, per OpenSecrets. The biggest single source was a super PAC called the Senate Leadership Fund, which spent more than $280 million trying to influence Senate races.

Who Actually Writes the Checks

If you picture a typical political donor, you're probably picturing someone wealthier than you. You're right. A 2022 analysis by the political scientists at the nonprofit group RepresentUs found that the top 1 percent of donors by income gave roughly 30 percent of all individual contributions. The bottom 50 percent gave a tiny fraction.

Corporate money gets more attention than it deserves in one sense: corporations cannot give directly to federal candidates. That has been true since 1907. But they can fund super PACs, trade association PACs, and dark money nonprofits, and they can encourage employees to give through bundling operations. A single bundler, a well-connected person who collects checks from friends and colleagues, can deliver millions to a candidate without ever writing a huge personal check.

Unions play a similar role on the left. The National Education Association and the AFL-CIO are among the largest institutional spenders in Democratic politics, mostly through PACs funded by member dues.

Then there's dark money: spending by nonprofit groups that do not have to disclose their donors. The Brennan Center for Justice estimates that dark money groups spent more than $1 billion across the 2020 and 2022 cycles combined. You can see the ads. You just can't see who paid for them.

Where the Money Goes

Here's the part that surprises people: most campaign money never reaches voters as persuasion. In a competitive House race, roughly half of all spending goes to television and digital advertising. Another large chunk goes to consultants, pollsters, and mail vendors. Direct voter contact, the door-knocking and phone-banking that actually moves turnout, is a comparatively small line item.

In the 2020 cycle, the Biden and Trump campaigns combined spent more than $1.5 billion on advertising alone. Senate races in Georgia that year cost more than $800 million combined, much of it on TV spots in the Atlanta market.

The result is a feedback loop. Consultants who make ads get paid whether the ads work or not. Candidates spend more time fundraising than legislating. A 2013 study by two political scientists found that House members spent an average of 27 hours per week on fundraising duties. That number has likely grown since.

What You Can Actually Do

You don't have to be a campaign finance lawyer to see who's funding your representatives. The information is public, and it's easier to find than most people realize.

  • Use OpenSecrets.org. Type in any candidate's name and you'll see total raised, top donors, and top industries. The data comes straight from FEC filings.
  • Check the FEC's own site. FEC.gov lets you search individual contributions by donor name, employer, and ZIP code. You can see whether your neighbors are giving, and to whom.
  • Look at outside spending reports. The FEC publishes independent expenditure filings within 24 or 48 hours of a big ad buy. You can see who paid for that attack ad before it even airs.
  • Follow the dark money trail indirectly. If a nonprofit runs political ads, it must file with the IRS. Those filings are public, though they often list only the group's name, not its donors.
  • Vote in primaries. The single most effective way to reduce the influence of money is to participate in low-turnout primaries, where a small number of donors and activists decide who makes it to the general election.
The people who fund campaigns are not a cross-section of America. They are older, wealthier, and more likely to be white than the electorate as a whole. That is not a conspiracy. It is a structural feature of a system where giving money is treated as a form of speech.