>>441846The constitution is the supreme law of the land but the founders knew that they could not possibly accurately predict the future so our constitution is sometimes a little general, which leaves room for interpretation.
So a local or state government can pass a law that effectively bans guns for example, but someone can sue that government and challenge the law. in the end the Supreme Court has the final say.
The Supreme Court is tasked with officially trying to determine how the constitution applies in contemporary situations.
Pic somewhat related.