Like other Liberal Democratic Party lawmakers, Hajime Funada is a strong proponent of amending the postwar Constitution.
The veteran Lower House lawmaker, 62, has been seeking the revision as an active member of the Constitution Research Council of the Lower House since the Diet launched the panel 16 years ago.
But Funada is a maverick within the party because he is waging a solitary campaign against Prime Minister Shinzo Abe's constitutional revision drive.