Following a bitter legal battle before the U.S. Supreme Court over the scope of the Voting Rights Act, the challengers are again fighting the federal government—this time over legal fees.

In June, a divided Supreme Court sided with Shelby County, Ala., in striking down a key section of the voting rights law. Shelby County’s lawyers from Wiley Rein now want a federal trial judge to order the government to pay more than $2 million in attorney fees and litigation costs.