Cabinet members - WRONG ANSWER
Courts
Courts
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Supreme Court
supreme court [ us ]
The judicial branch is the main actor that decides whether or not an action of the government is unconstitutional. However, technically the President can decide not to enforce parts of a law Congress passes on the basis of unconstitutionality through constitutional signing statements.
Judicial review is the power to declare a government action that violates some provisions of the constitution to be null and void. This is as a result of the action being in contravention with the provisions of the constitution.
Courts
Courts
Unconstitutional
Judicial Review
Determine whether a president's actions violate the constitution.