Then he hasn't been thinking the last 10yrs because Ruto is heartbeat away from PORK.
The genesis of Uhuru and Ruto fall out is Money or Jealousy
Ruto outstole Uhuru.
This same fallout btw Wanjigi and Uhuru - who were best friends.
Wanjigi had done the donkey on SGR - only to be told it was going to be exclusive Uhuru baby.
Ruto backed off - after a little resistance - but Wanjigi could take none of it.
Ruto - then quietly took everything else - only for uhuru to realize - everything else was bigger than SGR.
Most thugs end up shooting each other - for such kind of jealousy - they don't get killed by police.
Thug A realize that Thug B - took 10 times his loot -and get murderous angry

- forgetting it not his money.
Now when it come to Raila - you're talking vendetta starting from 1966!
That involves murder, long prison jail terms, luo discrimination for many years, rigging, name any nasty stuff.
GEMA/Kenyattas know what they have done to Odingas and Luos.
They know Odingas will not forgive and forget.
Don't think Uhuru is not typical GEMA who fear Raila.
Uhuru will pick Ruto and even campaign for him. Wait and see.
GEMA yes fear Ruto small small but at least they know worst he would be is Moi.
For Luos and Odinga - they don't know - but they know it could be close to Amin of Uganda.
Is that so? I don't think he trusts Ruto after what he did to him. Uhuru knows if he allows a Ruto presidency his family's wealth is gone so he will insure victory for anyone but Ruto.