nairobi kenya opposition leader raila odinga say tuesday want interim government run country six months constitution review curb president authority odinga tell reuters interview open talk president uhuru kenyatta constitutional review aim low risk violence minority group feel exclude power kenyatta re-elected 98 percent vote oct. 26 odinga boycott election say would fair repeat presidential vote follow election august kenyatta also nullify supreme court procedural ground odinga supporters repeatedly protest result least 51 people kill turmoil since august generate atmosphere uncertainty east africa rich economy pure presidential system enhance ethnicity community believe safe unless man top odinga say interview office three kenya presidents since independence britain 1963 kikuyu ethnic group one kalenjin group although 44 recognize ethnic group nation current president kikuyu deputy kalenjin many odinga supporters largely draw ethnic group say feel exclude power 2010 constitution devolve power money kenya 47 counties spread opportunities power political patronage budget power still hand central government something odinga want change new constitution enact 2010 think time revisit say constitutional review could strengthen institutions like election board cut power presidency say think maybe six months require carry change need country odinga serve prime minister coalition government craft 2008 two months violence follow dispute election kill 1,200 people oct. 26 election odinga opposition alliance call civil disobedience include protest boycott products service firm friendly kenyatta government force reform opposition challenge kenyatta oct. 26 victory supreme court protest action voter right activists lodge case monday court 14 days review kenya 's odinga say constitutional review talk pave way crisis