 Wambugu was reelected again on TNA( The national Alliance) party ticket and now serving the second term in the national assembly 

Hon.Wambugu a prominent Wahundura High School alumnus has been supportive of the school and instrumental in reviving its Old Boys Association.He also previously worked for the African Express Airways and served in a team, appointed by Hon.Chirau Ali Mwakwere the then Minister for Transport, to investigate the Kenya Police Helicopter accident, which happened in Kapsabet on 11 May 2009.