Federal courts have the right to do what to laws that they feel are violating the Constitution?

Article III federal (constitutional) courts may nullifyor overturn a law they consider unconstitutional and render it unenforceable; however, a lower court decision is likely to be appealed all the way to the US Supreme Court, the ultimate authority on constitutionality.

Article III Courts

• US District Courts
• US Court of International Trade
• US Court of Appeals Circuit Courts
• Supreme Court of the United States