Any Article III (constitutional) federal court in the Judicial Branch of government may declare a law or executive order unconstitutional under the doctrine of judicial review, but only if the law is relevant to a case or controversy before the court.
Because Executive Orders and Federal Laws are important, any decision overturning a one or the other as unconstitutional would probably (not definitely) be appealed to The US Supreme Court. The Supreme Court is the final arbiter of constitutionality, and may overturn the lower court's decision on appeal.
Judicial Branch
The Supreme Court, as the head of the judicial branch, determines whether actions of the executive branch are constitutional. They do this by looking at the US Constitution, applying the facts of the executive branch's actions to the constitution and by reviewing past Supreme Court decisions on cases with similar facts and issues.
Only the judicial branch of the US government can declare executive orders or actions unconstitutional. Any federal court can make this declaration.
Supreme Court
It means that the monarch acts on the advice of his ministers as regards the executive and as regards the legislative, will not veto a law passed after due parliamentary process.( Cannot make laws, or pass laws.)
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.
The judicial branch has the authority to rule that actions of the other branches are unconstitutional. For instance Abraham Lincoln suspended Habeas by presidential order, later by congressional action; the US Supreme Court ruled that both were unconstitutional.
unless the state law is declared unconstitutional the answer is yes.
(Supreme Court)
The Coercive Acts.
Coercive acts
The Coercive Acts.
Coercive acts
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.
The United States Supreme Court has the authority to rule a state law is unconstitutional. It has the authority to invalidate legislation and executive actions that the court considers in conflict with the United States Constitution.