The Supreme Court is rejected a conservative group's challenge to a Delaware campaign finance law in Delaware Strong Familes v. Denn.
The justices on Tuesday left in place a lower court ruling allowing the 2012 law to be enforced. The measure requires third-party groups working independently of candidates to influence elections to disclose the source of donations.
Delaware Strong Families challenged the disclosure requirements.
Justices Samuel Alito and Clarence Thomas said they would have heard the appeal.
“In 2012, I was proud to work alongside Speaker Bob Gilligan, Common Cause of Delaware, and many others to enact the first major update to Delaware campaign finance laws in 20 years,” Gov. Jack Markell said today after the court’s move. "The Delaware Elections Disclosure Act closed loopholes that allowed anonymous campaign-related advertising and required prompt reporting of third-party spending on campaign ads. I am gratified today that the constitutionality of that law has been reaffirmed. Thanks to the Supreme Court’s decision, Delaware elections in the future will be more open and transparent.”