Ronald Dworkin in the New York Review of Books:
Against the opposition of their four colleagues, five right-wing Supreme Court justices have now guaranteed that big corporations can spend unlimited funds on political advertising in any political election. In an opinion written by Justice Anthony Kennedy and joined by Chief Justice John Roberts and Justices Samuel Alito, Antonin Scalia, and Clarence Thomas, the Court overruled established precedents and declared dozens of national and state statutes unconstitutional, including the McCain-Feingold Act which forbade corporate or union television advertising that endorses or opposes a particular candidate.
This appalling decision, in Citizens United v. Federal Election Commission, was quickly denounced by President Obama as “devastating”; he said that it “strikes at our democracy itself.” He is right: the decision will further weaken the quality and fairness of our politics.
More here. And here's Glenn Greenwald on the decision:
I want to note one extremely bizarre aspect to the discussion yesterday. Most commenters (though not all) grounded their opposition to the Supreme Court's ruling in two rather absolute principles: (1) corporations are not “persons” and thus have no First Amendment/free speech rights and/or (2) money is not speech, and therefore restrictions on how money is spent cannot violate the First Amendment's free speech clause. What makes those arguments so bizarre is that none of the 9 Justices — including the 4 dissenting Justices — argued either of those propositions or believe them. To the contrary, all 9 Justices — including the 4 in dissent — agreed that corporations do have First Amendment rights and that restricting how money can be spent in pursuit of political advocacy does trigger First Amendment protections.