How Money Affects Elections

Campaign spending is out of control. Studies show that the obscene amounts of cash flowing through ad companies actually does little for the vast majority of candidates. Instead, our current system appears to be a legal way for the wealthiest donors to try to buy politicians, and increasingly ensure only the rich run (though we’ve recently seen a few notable exceptions). We should push for a robust, fair public finance system, with clear spending limits, and a much higher standard of transparency for where large donations are coming from.

…If you focus on general elections, he said, your view is going to be obscured by the fact that 80 to 90 percent of congressional races have outcomes that are effectively predetermined by the district’s partisan makeup — and the people that win those elections are still given (and then must spend) ridiculous sums of money because, again, big donors like to curry favor with candidates they know are a sure thing.

But in 2017, Bonica published a study that found, unlike in the general election, early fundraising strongly predicted who would win primary races. That matches up with other research suggesting that advertising can have a serious effect on how people vote if the candidate buying the ads is not already well-known and if the election at hand is less predetermined along partisan lines.

Basically, said Darrell West, vice president and director of governance studies at the Brookings Institution, advertising is useful for making voters aware that a candidate or an issue exists at all. Once you’ve established that you’re real and that enough people are paying attention to you to give you a decent chunk of money, you reach a point of diminishing returns (i.e., Paul Ryan did not have to spend $13 million to earn his seat). But a congressperson running in a close race, with no incumbent — or someone running for small-potatoes local offices that voters often just skip on the ballot — is probably getting a lot more bang for their buck.

Another example of where money might matter: Determining who is capable of running for elected office to begin with. Ongoing research from Alexander Fouirnaies, professor of public policy at the University of Chicago, suggests that, as it becomes normal for campaigns to spend higher and higher amounts, fewer people run and more of those who do are independently wealthy. In other words, the arms race of unnecessary campaign spending could help to enshrine power among the well-known and privileged.

“That may be the biggest effect of money in politics,” West wrote to me in an email…