constitutional : Idioms & Phrases
constitutional convention
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       noun the convention of United States statesmen who drafted the United States Constitution in 1787
        
      
 
WordNet
Constitutional law
- law that relates to the constitution, as a permanent system of political and juridical government, as distinguished from statutory and common law, which relate to matters subordinate to such constitution.
Webster 1913
constitutional union party
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       noun a former political party in the United States; formed in 1859 by former Whigs who hoped to preserve the Union