Respuesta :

establishes that the constitution, federal laws made pursuant to it, and treaties made under it authority, constitute the supreme law of the land.
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Supremacy Clause, in simple words, guarantee that the Constitution, Federal Laws and Treaties made under the Constitution, are the supreme law of the country.

For example, if a State Law conflicts with, for example, a Federal Law, the Federal Law must be applied, as it's part of the supreme law of the country, and the State Law is not.