The attorneys for Manuel Benavidez successfully sued the City of Irving to change how its voters elect city officials. They had alleged the city's at-large voting system diluted Latino residents' voting power.
Attorneys representing Manuel Benavidez asked the court Thursday for more than $598,600 in fees and expenses from Irving.
Earlier this month, a federal judge in Dallas ordered Irving officials to adopt a single-member district election plan and awarded costs to Benavidez.
Both sides must submit a joint proposal for a new election system or separate ones if they can't agree.
Irving officials say they'll appeal but will work with the plaintiff on a new plan.