Mu buzima bwiwe bwa politike, igihe u Burundi bwinjiye mu ntwaro ishingiye ku migambwe myinshi, Bwana Nyabenda yinjiye mu mugambwe PP (Parti du Peuple) mu 1992 wakoranye n'umugambwe Sahwanya-Frodebu watsinze amatora yo mu 1993.
