Campaign reform advocates reacted angrily Wednesday to the U.S. Supreme Court’s ruling in McCutcheon v. Federal Election Commission, attacking the justices for coming close to dismantling the long-standing legal structure for limiting the influence of money in political campaigns.

“This court is on a path to destroy our nation’s campaign finance laws,” said Fred Wertheimer, president of Democracy 21, a longtime advocate for reform. He said the McCutcheon ruling represented the first time the court has struck down a “core contribution limit” since the 1976 ruling in Buckley v. Valeo.