sentences:  Shema also served as Chairman, National Reconciliation Committee for the South-South PDP (May to June 2006).He also served as Chairman of the Governing Board of the Nigerian Airspace Management Agency (NAMA) from December 2005 to November 2006, when he won the PDP's ticket to contest the 2007 gubernatorial elections in Katsina State.Ibrahim Shema was elected Governor of Katsina State on 12 April 2007, as successor to Umaru Yar'Adua, who had been elected President.