The Post discusses Citizens United in this editorial today.
Citizens United ought to have been allowed to distribute “Hillary: The Movie” any way it chose; this is just the sort of political speech that the First Amendment was designed to protect. But those protections can be upheld without eroding the prohibition on corporate-funded campaign advertising.
For the court instead to reach out and overrule the earlier cases would be judicial activism of the first order, precisely the opposite of the judicial modesty and adherence to precedent advocated by Chief Justice John G. Roberts Jr. The court should back away from this cliff.