The New Patriotic Party (NPP) Member of Parliament for Bunkpurugu in the Northern Region, Solomon Namliit Boar, has told DAILY GUIDE that he would sue the national chairman of the ruling National Democratic Congress (NDC), Kofi Portuphy, for branding him as a violent person and also accusing him of actively participating in a violence allegedly unleashed on NDC members a day before the by-election in Talensi.