LET's reason together and leave political partisanship aside. Kenya is yet to reach that level where an incumbent can be defeated by an opposition figure. Leave alone the fact that the current opposition competitor is politically exhausted and doesn't represent any change.
In 1992 and 1997, despite all odds, the incumbent wasn't defeated. Real change came in 2002, when Moi had completed his term. In 2007, an opposition figure failed to clinch the presidency, even after we sunk deep into the dungeons of bloodshed. Another change came only in 2013, when the incumbent had completed his two terms.
Now, based on this analysis, and with the available machinery at the disposal of the current government, whoever says he can defeat an incumbent in Kenya is hallucinating. I see people reasoning like kindergarten kids and wasting their time shouting at the top of their voices, while the odds are against Raila and his team.
The only option Raila has and he's currently doing is incitement, with an intention to justify rigging allegations later and probably have a reason to call for mass action. Kenyans must be informed that this time round, the security machinery is alert and people must be prepared to concede defeat and let this country move on.