Answer:
Supremacy clause
Step-by-step explanation:
The supremacy clause is mentioned in the article 6 of the US constitution. It proclaims that all the laws made in accordance to the constitution is the supreme law of the land.
It also establishes that the federal law and federal constitution takes is more important than the state laws and state constitutions.
In this case the the Florida law can be challenged in the court on basis of Supremacy clause.