Judicial Review: This is the power of courts to examine whether a statute, treaty or administrative regulation contradicts or violates the provisions of existing law, a State Constitution, or ultimately the United States Constitution.
Bill of Rights: This is the first ten amendments to the US Constitution that outline fundamental rights and liberties such as freedom of speech, religion, and press.
Supremacy Clause: This clause in Article VI of the U.S. Constitution dictates that federal law is "the supreme Law of the Land," meaning it takes precedence over state laws if there is conflict between them.