Why Rational Anticorruption Voters Might Not Support the Anticorruption Candidate

As some readers of this blog are likely aware, Fordham law professor Zephyr Teachout is challenging the Andrew Cuomo, New York’s incumbent governor, in the state’s Democratic primary, to be held tomorrow. One of her main campaign themes is corruption: Her campaign emphasizes corruption in the Cuomo administration both in the narrow sense of raising concerns about unethical and possibly unlawful conduct in New York state government (as well as Governor Cuomo’s controversial decision to disband the Moreland Commission, which had been looking into these issues), and also “corruption” in the broader sense of excessive influence of wealthy interests and the distorting effect this has on politics. Teachout herself concedes that if she wins it would be the “upset of the century,” and indeed most political prognosticators give her virtually no chance of winning. Why not?

It’s true, of course, that Teachout has no prior experience in electoral politics and is up against a savvy and well-funded incumbent. But there’s a bigger problem for her — and for any insurgent anticorruption candidate or party — that derives from the nature of the U.S. electoral system that Nobel Laureate Roger Myerson identified over two decades ago in a technical game theory paper on how electoral institutions affect the success or failure of insurgent anticorruption candidates. Although Myerson’s analysis does not correspond perfectly to the New York primary (for reasons I will explain in a moment), it is nonetheless enlightening–not only for the challenges faced by Teachout, but for anticorruption parties more generally. Continue reading