WASHINGTON AP – The Supreme Court ruled Thursday that corporations may spend as freely as they like to support or oppose candidates for president and Congress, easing decades-old limits on business efforts to influence federal campaigns.

By a 5-4 vote, the court overturned a 20-year-old ruling that said companies can be prohibited from using money from their general treasuries to produce and run their own campaign ads. The decision, which almost certainly will also allow labor unions to participate more freely in campaigns, threatens similar limits imposed by 24 states.