system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:If a state government decides to not follow federal law, what are the most drastic measures the federal government could take?
gpt
It depends on the law. The National Guard was called into the Alabama school desegregation scandal in 1963 because the governor of the state was physically prohibiting the desegregation.    
    
But most federal 'laws' are more like guidelines that the state has to follow because the fed attached funding to it and the state wants to keep the funding.