The justices turned away an appeal by Anna St. John, an attorney who opposed an agreement for Monsanto to pay more than $39 million to settle claims that the company deceptively labeled certain Roundup weedkiller products. Lower courts rejected the challenge by St. John, who had objected to the settlement because $14 to $16 million of the award would go to consumer non-profit groups and a university that were not injured by the company's alleged misconduct.

(Reporting by Will Dunham)

By Andrew Chung