A lawyer for an Uber-backed ballot initiative that would impose the strictest cap on contingency fees in the country faced questions this week from the Nevada Supreme Court.

An en banc panel of the state’s highest court heard oral arguments on whether the ballot measure, which would impose a 20% cap on contingency fees in all civil cases, followed the parameters of Nevada law or was misleading, a position argued by attorney Deepak Gupta, who represents two challengers, the Uber Sexual Assault Survivors for Legal Accountability and the Nevada Justice Association.