The police still make arrests for illegal gambling. Bookmakers are still charged with violating the law. Agents for bookmakers still get arrested and face jail time, fines and forfeiture of their money.
The legality of bookmaking varies from state to state in the US. While some states have legalized sports betting and have established regulations for licensed operators, others still prohibit it. Running an illegal bookmaking operation has severe legal consequences, including fines and imprisonment.