Which clause requires that a higher authority’s laws take precedence over conflicting state laws?

Which clause requires that a higher authority’s laws take precedence over conflicting state laws?

• A. The Tenth Amendment
• B. The Supremacy Clause
• C. The Necessary and Proper Clause
• D. The Habeas Corpus Clause

Answer: (B)

The main concept being tested is that federal law outranks state law when there is a conflict, and this is established by the Supremacy Clause. The Supremacy Clause appears in Article VI and says that the Constitution, federal laws made pursuant to it, and treaties are the supreme law of the land, binding on judges in every state. When a federal statute directly conflicts with a state law, the federal provision wins, and the state law must yield—this is known as preemption. This principle ensures a uniform legal framework across the country and prevents states from acting in ways that would undermine federal policy. It’s helpful to contrast with the other options to see why they don’t serve this specific function. The Tenth Amendment speaks to reserved powers—whatever powers aren’t granted to the federal government belong to the states or the people—but it doesn’t establish that federal law automatically prevails over conflicting state laws. The Necessary and Proper Clause gives Congress the authority to enact laws needed to execute its powers, but it doesn’t by itself establish a supremacy rule between federal and state laws. The Habeas Corpus Clause protects the right to challenge unlawful detention, a civil liberty guarantee, and does not address the hierarchy of laws between federal and state levels.

The main concept being tested is that federal law outranks state law when there is a conflict, and this is established by the Supremacy Clause. The Supremacy Clause appears in Article VI and says that the Constitution, federal laws made pursuant to it, and treaties are the supreme law of the land, binding on judges in every state. When a federal statute directly conflicts with a state law, the federal provision wins, and the state law must yield—this is known as preemption. This principle ensures a uniform legal framework across the country and prevents states from acting in ways that would undermine federal policy.

It’s helpful to contrast with the other options to see why they don’t serve this specific function. The Tenth Amendment speaks to reserved powers—whatever powers aren’t granted to the federal government belong to the states or the people—but it doesn’t establish that federal law automatically prevails over conflicting state laws. The Necessary and Proper Clause gives Congress the authority to enact laws needed to execute its powers, but it doesn’t by itself establish a supremacy rule between federal and state laws. The Habeas Corpus Clause protects the right to challenge unlawful detention, a civil liberty guarantee, and does not address the hierarchy of laws between federal and state levels.