Mr. Wambua is the newly elected Senator of Kitui. Mr. Wambua quit the media industry in December 2016 to launch his political bid for the Kitui Senate seat. Senator Wambua has vast  experience in media. He was the  Managing Editor of The Standard Group's weekend editions: The Standard on Saturday and The Standard on Sunday.  He also worked at the Nation Media Group where he was an Associate Editor. He has also worked as a senior editor with Kenya Times Media Trust. Mr. Wambua holds a Bachelor of Education in English and Literature from Moi University. He also has a Graduate Diploma in Planning and Management and Development Studies from Catholic University of Eastern Africa (CUEA). He has a Certificate in Mass Communication from the Union of African Journalists; and a Graduate Diploma in American Studies from Smith College.