The Supreme Court yet again loosened campaign finance restrictions on Tuesday by striking down limits on how much political parties may raise and spend on candidates.

By a 6-to-3 vote along ideological lines, the court ruled the law, which had been enacted in 1974, violates political parties’ First Amendment rights. Justice Brett Kavanaugh wrote the majority opinion.

At issue in the case was a post-Watergate law that Congress passed to limit the amount of money individuals can give to political parties. The law, the Federal Election Campaign Act, also limited how much money political parties can spend on their candidates. Other types of organizations, like political action committees and Super PACs, have no limits on the amount of money they can raise and spend on elections. But unlike parties, they cannot coordinate with candidates.