Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-law-29d02fca0364
What do states retain power to make laws about?
Anything not preempted by federal law.
- Only traffic rules
- Only tax rules
- Anything not preempted by federal law ✔
Why: States retain plenary power to make laws covering anything not preempted by federal law.
Huh, didn't know that: States retain plenary power to make laws covering anything not preempted by federal law.
States have broad power unless federal law steps in.
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References
Answer: Anything not preempted by federal law. States retain plenary power to make laws covering anything not preempted by federal law.
- Law of the United States en.wikipedia.org/wiki/Law_of_the_United_States
They retain plenary power to make laws covering anything not preempted by the federal Constitution
Checked 2026-11-07.
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