[4][5] Nnamani, though born in Port Harcourt, hails from Agbani in Nkanu West Local Government Area of Enugu State.

[11] He re-contested for the seat in the April 2011 elections, this time on the platform of the People for Democratic Change (PDC), but lost in controversial circumstances.

He vied for the same seat again in the 2015 elections and was widely projected to win when, to the consternation of the populace, his main challenger was surprisingly declared as the winner, this time provoking spontaneous mass protests that rocked the capital city of Enugu for days.

[15] He also took his campaign to all the development centers in the 6 local government councils of the senatorial district as well as the major markets, reconfirming his reputation as a crowd puller.

[16] Nnamani has repeatedly credited his smooth return journey to the Senate to the strong backing he received from the Governor of his state, Rt.

He received his certificate of return as a senator-elect from the Independent National Electoral Commission (INEC) on 14 March 2019 and assumed office on 11 June 2019 following the inauguration of the 9th Senate of the Federal Republic of Nigeria.

Education As governor, Dr. Nnamani established District Education Centers in the state, conceived and built the permanent campus of the Enugu State University of Science and Technology (ESUT), constructed and handed over to the Federal Government, the Enugu Campus of the Nigerian Law School, and also constructed and handed over to the Nigerian Air Force, the Airforce Comprehensive High School at Agbani.

The massive project involved the construction of new buildings, refurbishing of existing ones and the provision of modern equipment that enabled the facility to pass the accreditation of the relevant authorities in the health cum education sectors.

There were also new road infrastructures like the Nyaba Bridge, and the Ebeano bypass linking NBL Ama Brewery at 9th Mile Corner with the Enugu-Onitsha expressway.

Governor Nnamani carried out far-reaching reforms in locality administration which have continued to define the structure of grassroots politics and governance in Enugu State.

Ndigbo, Taa Bu Gboo, Echi di lme (Let the Future Begin Now); Odenigbo Forum, Eko L'meridien Hotel, Victoria Island, Lagos, 24 April 2001.

The Press and Our Democracy: The Path Not Trodden; Nigeria Association of Women Journalists (NAWOJ) lecture series, Main Auditorium of the National Universities Commission Headquarters, Abuja; 15 May 2001.

Transition Politics and Nigeria's Search for Sustainable Democracy; First edition of Post Express Anniversary Lecture series, MUSON Center, Onikan Lagos; 2 July 2001.

; Annual lecture series of South East Development Initiative (SEDI), at the Sam Mbakwe Hall, Concorde Hotel, Owerri, 14 December 2001.

; Lecture series of the Basic Society Initiative (BSI), Nigerian Institute for International Affairs (NIIA), Lagos, 5 August 2003.

12 June: the North and the rest of us; Second edition of the Bola Ige Memorial Lecture, Main Hall, Premier Hotel, Ibadan, 30 September 2003.

The Press and the Nigerian Project; public lecture of the Newspaper Proprietors' Association of Nigeria (NPAN), Diamond Hall, Golden Gate Restaurant, Ikoyi, Lagos, 23 October 2003.

The foetus as a Patient: the Meeting Point Between the Pediatrician and the Obstetric Surgeon; Guest Lecturer at the 3rd Annual Conference of the Association of Pediatric Surgeons of Nigeria (APSON), at the Conference Hall, Nike Lake Resort, Enugu, 27 November 2003 The Bar and the Bench: Public Expectations in a Nascent Democracy; Annual bar lecture of the Abuja Branch of the Nigerian Bar Association (NBA), at Ogun/Osun Hall of the NICON Hilton Hotel, Abuja, 10 December 2003 Poverty ... the Challenge of Medical Ethics; Annual Guest Lecture of the Institute of Child Health (ICH), University of Nigeria Teaching Hospital (UNTH), Enugu, at the Conference Hall of Nike Lake Resort, Enugu, 17 March 2005.

Artisans as Leaders ... Zoning to Power; Public lecture of the Arewa House, Centre for Historical Research and Documentation, Old Ministers' Quarters, Malali, Kaduna, Nigeria, 20 July 2005.