Abdulaziz Usman has a post-graduate degree in Business Management. Before entering politics, he was a senior planning officer for Jigawa State Agriculture And Rural Development. He was elected as a member of the
House Of Representatives for 1999–2003, and was reelected for 2003–2007. In 2005, he supported
Atiku Abubakar, then the Vice President of Nigeria, in a libel claim against Newswatch magazine related to accusations of corruption while Atiku was chairman of the National Council on Privatization.{{Cite news |url=http://www.newswatchngr.com/editorial/allaccess/nigeria/10926142113.htm|location=Lagos, Nigeria |title=Newswatch Versus Atiku |author=Sebastine Obasi |date=September 26, 2005 |access-date=2009-10-04 |url-status=dead |archive-url=https://web.archive.org/web/20110727104430/http://www.newswatchngr.com/editorial/allaccess/nigeria/10926142113.htm |archive-date=2011-07-27 ==Senate career==