From Oyez: Citizens United v. Federal Election Commission

The semi-notorious court case that led to open ending spending on campaigns in the United States. 

- Click here for the entry.

By a 5-to-4 vote along ideological lines, the majority held that under the First Amendment corporate funding of independent political broadcasts in candidate elections cannot be limited. Justice Anthony M. Kennedy wrote for the majority joined by Chief Justice John G. Roberts and Justices Antonin G. Scalia, Samuel A. Alito, and Clarence Thomas. Justice John Paul Stevens dissented, joined by Justices Ruth Bader Ginsburg, Stephen G. Breyer, and Sonia Sotomayor. The majority maintained that political speech is indispensable to a democracy, which is no less true because the speech comes from a corporation.