(Supreme Court)
Supreme court
it might be supreme court A+
Congress cannot declare laws unconstitutional. The Judiciary Branch may declare a law unconstitutional only if it conflicts with some provision of the State or Federal Constitution. The Supreme Court can rule a law to be unconstitutional, but Congress, along with the States, can only amend the Constitution.
Supreme Court
ruling that certain laws or presidential actions are unconstitutional
Who can declare laws unconstitutional
They are called "unconstitutional laws".
Portions of the Patriot Act were declared unconstitutional in 2004 See http://www.cnn.com/2004/LAW/01/26/patriot.act.ap/ That's at the federal level. State laws can be declared so also. See http://www.keystonepolitics.com/story/aroundcapitol/expanded-state-hatecrimes-law-declared-unconstitutional One of the roles of the appeals courts and supreme courts at both the state and federal level is to rule on the constitutionality of a law.
State nullification is the idea that the states can and must refuse to enforce unconstitutional federal laws.
Both the state and federal supreme courts can overturn unconstitutional state laws; the US Supreme Court is the ultimate authority on the constitutionality of federal law.
States could nullify federal laws. That states could and should decide when Congress was passing unconstitutional laws PLATOO against a loose interpretation of the constitution
The federal government
The Legislative Branch sometimes passes unconstitutional laws, but they're not supposed to. None of the branches is authorized to create unconstitutional laws.
The Judicial Branch interprets the law and may declare a law unconstitutional if it is relevant to a case before a court. Unconstitutional laws are nullified (overturned) and rendered unenforceable. Contrary to popular belief, they do not review all federal laws for constitutionality.