A minimum wage case before the Florida Supreme Court will determine whether Miami Beach can move ahead with an ordinance passed by the city commission in 2016. The issue is whether a 2003 state law stopping local governments from setting their own minimum wage supersedes a 2004 voter-approved constitutional amendment. Miami Beach city commissioners voted to phase in a higher minimum wage that would reach $13.31 an hour by 2021. That would be about $5 more an hour than the state’s minimum wage.