The top two presidential contenders in this year's nail-biting presidential election - Kenya Kwanza's William Ruto and Raila Odinga of Azimio - have an intriguing history.
Nothing illustrates the phrase "there are no permanent enemies in politics" than the relationship between these two politicians. On the surface, they appear different as night and day. One is the older, almost inarticulate storytelling battle-scarred general of Kenya's opposition politics. And the other is younger, brash, articulate systems man who served the very system Raila fought for most of his youthful days.