In the United States, the Supreme Court struck down Colorado limits on coordinated expenditures by political parties under the Election Campaign Act. The decision affects Colorado political parties and candidates, while changing the campaign-finance rules that shape voters' political environment.

The ruling weighs limits on coordinated spending against parties' ability to work with their candidates, reflecting the court's concern that restrictions could hinder parties' traditional campaign role. The vote is over whether that expansion of party coordination should stand, given the Court's statement that it is “natural for a party and its candidate to work together.”