Deborah Goldbert has written this Roll Call oped, which begins: “Contribution limits have been a core element of campaign finance regulation for decades, and the Supreme Court has repeatedly upheld them in the face of constitutional challenge. But opponents of Vermont’s limits are now asking the court to reconsider, arguing that caps on contributions are an incumbent-protection device. However, three new studies on campaign contribution limits– one published in Public Choice, a second forthcoming in Political Research Quarterly, and the third to be published by the Brookings Institution in The Marketplace of Democracy — offer empirical evidence to quell that familiar but flawed argument.”