The Florida Supreme Court is overturning the agreement Gov. Charlie Crist signed with the Seminole Tribe to expand gambling at its casinos.

The court ruled Thursday that Crist doesn’t have the constitutional authority to enter into the agreement that allows Las Vegas-style slot machines, black jack and other card games at facilities such as the Hard Rock Casinos in Tampa and Hollywood.

House Speaker Marco Rubio challenged the agreement after Crist signed it in November. The tribe has already given the state $50 million as part of the deal that was expected to generate at least $100 million a year for the state.