American politics is in trouble. A tsunami of unaccountable, untraceable political money is overwhelming the Republican race for the presidential nomination and threatens to do the same to the fall election. For many people, especially progressives, the culprit is easy to name: the Supreme Court’s 2010 decision in Citizens United v. Federal Election Commission, which swept away any limits on election-advocacy ads by corporations, unions, and “independent” political-action committees (PACs) and issue groups. Many progressives believe that Citizens United “made corporations people” and that a constitutional amendment restricting “corporate personhood” will cure this political ill. Citizens United is a bad decision. This obvious fact may even be dawning on the Court’s conservative majority, which is taking a surprisingly leisurely look at American Tradition Partnership, Inc. v. Bullock, in which the Montana Supreme Court directly challenged Citizens United, in essence telling the justices that they didn’t understand the first thing about politics. Justices Ruth Bader Ginsburg and Stephen Breyer, dissenters in Citizens United, have publicly stated that American Tradition may offer an opening to limit or even overturn the malign precedent.