Mercer is emblematic of a major shift in American politics that has occurred since 2010, when the Supreme Court made a controversial ruling in Citizens United v. Federal Election Commission. That ruling, and several subsequent ones, removed virtually all limits on how much money corporations and nonprofit groups can spend on federal elections, and how much individuals can give to political-action committees. Since then, power has tilted away from the two main political parties and toward a tiny group of rich mega-donors.
Private money has long played a big role in American elections. When there were limits on how much a single donor could give, however, it was much harder for an individual to have a decisive impact. Now, Potter said, “a single billionaire can write an eight-figure check and put not just their thumb but their whole hand on the scale—and we often have no idea who they are.” He continued, “Suddenly, a random billionaire can change politics and public policy—to sweep everything else off the table—even if they don’t speak publicly, and even if there’s almost no public awareness of his or her views.”