Orji Uzor Kalu, has assured Nigerians that he will do his best ensure the sustenance of Nigeria’s democracy.The Senator said this on Friday while celebrating 2020 Democracy Day.He wrote: “As we commemorate and celebrate the remembrance of Moshood Kashimawo Abiola and other heroes of our hard-fought democracy, I want to assure all Nigerians that I would do my best to ensure its sustenance,” he tweeted.Recall that Kalu resumed normal legislative duties at the National Assembly complex earlier this week after he was confined at the Kuje Correctional Centre for six months.The Senator and others, were in December last year, convicted and sentenced for N7.1bn fraud.