The Supreme Court, in a 5-4 decision, crafted a major exception to the limitations on broadcast ads within 30 days of a primary or 60 days of a general election.
Although "WRTL II," as the case is generally called, remains an important marker in First Amendment campaign finance jurisprudence, as a practical matter, it has been largely superseded by the Court's 2010 decision in Citizens United v. Federal Election Commission.