The most seductive narrative about money in politics is also the least accurate: that elections are simply purchased, that billionaires write checks and outcomes follow, that voters are passive recipients of bought results.
This narrative is wrong in ways that matter — not because money doesn't influence politics, but because the real mechanisms of influence are different from the simple transaction story, harder to see, harder to regulate, and ultimately more consequential than the version that generates outrage.
Understanding what money actually does in politics is more important, and more interesting, than the comfortable story that it just buys elections.
THE LIMITS OF SPENDING: WHAT THE DATA SAYS
If money straightforwardly bought elections, we would expect high-spending candidates to win at significantly higher rates than low-spending candidates. The data, across hundreds of races, doesn't show that.
Jon Tester spent $47 million on his Montana Senate campaign in 2024 — $204 per vote — and lost decisively. Sherrod Brown spent $101.4 million in Ohio — nearly four times his opponent's spending — and lost. The most expensive Senate race in history, Pennsylvania, was won by the candidate who spent less: Dave McCormick defeated Bob Casey while spending $8 million less in candidate committee funds.
In presidential races, the pattern is similar. Hillary Clinton outspent Donald Trump in 2016 by a substantial margin. Kamala Harris's operation massively outspent Trump's in 2024 on digital platforms. Neither outcome followed the spending.
The academic research confirms what the anecdotes suggest: above a certain threshold, additional campaign spending has sharply diminishing returns.
The academic research confirms what the anecdotes suggest: above a certain threshold, additional campaign spending has sharply diminishing returns. There is strong evidence that minimum viable spending matters — a candidate with no resources is severely disadvantaged. But the evidence that spending $200 million beats spending $50 million is much weaker than most people assume.
So what is all that money actually buying?
WHAT MONEY ACTUALLY BUYS: AGENDA, NOT OUTCOMES
The honest answer is that big money in politics buys something more diffuse and more durable than votes: it buys the ability to shape what gets talked about, what problems get defined as urgent, and what solutions are considered credible.
This is the agenda-setting function, and it operates largely upstream of elections.
When the Koch network spends hundreds of millions of dollars over decades building think tanks, funding academic research, supporting policy organizations, and training cadres of state-level activists, they are not primarily trying to elect specific candidates. They are trying to move the intellectual and policy environment in which candidates operate. They want their preferred framework for understanding economic policy to be the default framework — the one that gets taught in business schools, cited in newspaper editorials, and treated as the responsible mainstream position.
This kind of investment is almost impossible to regulate through campaign finance law because most of it happens outside of elections entirely. And its effects compound over time in ways that individual campaign contributions never could.
THE INFRASTRUCTURE ADVANTAGE
The more visible form of big-money influence — and the one that the 2024 cycle illustrated clearly — is infrastructure investment.
America PAC, Elon Musk's vehicle, spent roughly $250 million in 2024. A significant portion of that went not to advertising but to ground operations: door-knocking, text messaging, voter registration, and get-out-the-vote efforts in the seven most competitive states. This kind of investment builds something that outlasts any individual election: data on who's been contacted, modeling on who's persuadable, relationships with local organizers, and institutional knowledge about what works.
The same dynamic applies to the donor networks that fund state legislative races, school board elections, and judicial contests that receive almost no media attention. These races are cheap to influence — a few hundred thousand dollars can be decisive in a state legislative district — and their cumulative effect on policy is enormous.
The billionaire who spends $300 million trying to elect a president may get less return on that investment than the one who spends $50 million over a decade building infrastructure in a dozen state legislatures.
The billionaire who spends $300 million trying to elect a president may get less return on that investment than the one who spends $50 million over a decade building infrastructure in a dozen state legislatures. The latter investment shapes policy in ways that are nearly invisible to the public and almost impervious to electoral swings.
THE NARRATIVE MACHINE
The third mechanism — and arguably the most powerful — is narrative.
Large-scale political donors don't just fund campaigns. They fund the media environment in which campaigns operate: the think tanks that produce talking points, the advocacy organizations that generate earned media, the social media infrastructure that amplifies certain frames and suppresses others.
A political narrative that benefits from this kind of coordinated amplification doesn't need to be true to become widely believed. It needs to be repeated, by credible-seeming sources, across multiple channels, over a sustained period. Large-scale funding can manufacture all three of those conditions.
This is not unique to one party or ideological direction. Both sides of the political spectrum have developed sophisticated narrative infrastructure funded by large donors. The difference is often in the specific mechanics and the time horizons — some organizations invest in 10-year ideological projects, while others focus on election-cycle messaging. Both can be effective.
WHAT REFORM GETS RIGHT AND WRONG
The instinct to regulate big money in politics is reasonable. The mechanisms described above are genuinely concerning for democratic health.
But the reform conversation often focuses on the most visible and least impactful form of influence — direct campaign contributions — while the more consequential forms operate in spaces where campaign finance law has limited reach.
Disclosure is the reform with the clearest benefit and fewest downsides: requiring all significant political spending to be publicly attributed to its source allows voters to calibrate accordingly. The expansion of dark money — spending that flows through nonprofit vehicles that don't disclose donors — is the most important transparency problem in contemporary campaign finance.
Beyond disclosure, the reform landscape is genuinely complicated. Spending limits run into First Amendment constraints that the courts have consistently enforced. Public financing helps at the candidate level but doesn't address the outside-group infrastructure problem. And any regulatory system is vulnerable to the same dynamic that produced the current one: the people who benefit from it help write the rules.
The most accurate summary of money's role in American politics is not "billionaires buy elections." It's something more unsettling: large-scale political investment shapes the environment in which elections happen, over time horizons longer than most voters' attention spans, in ways that are difficult to see, difficult to attribute, and difficult to reverse.
That's a harder story to tell on a fundraising email. But it's the true one.
This is the second installment of "Power, Plainly Explained," a series examining the machinery of American government. Next: "The Primary Is the Election."