Tuju is smooth talker. Ruto is more than that. He is a Tom Mboya. Ruto is brilliant (Phd science), gifted propagandist, quick thinker and has amazing ability to grasp & remember things.
Say whatever you want says but Ruto delivers. That is why people believe him. He has solid track record of delivering whatever the assingment. He is not just a talker but a DOER. He is very rare politician which is why he has come from grass thatched house to PORK in such a short time...a complete politician in the mould of the greats like Meles Zenawi.
And he has mentored many to deliver. Your own Didmus Baraza is untouchable in Kimili. In coast Ali is untouchable in Nyali. Ndidi Nyoro untouchable in Kiharu. Wa-Ichungwa untouchable in Kabete. Osoro untouchable in Kisii. Duale untouchable in Garissa. Kawaya untouchable in Machakos. Tangatanga mps - so called - who stuck with Ruto - are untouchable - because voters can see their work - Ruto has mentored them - and made them understand you gotta work for the people - in addition to makelele of politics.
When Uhuru fired Ruto from gov - he simply decide to help MPS and governors deliver on CDF and other projects.
Those leaders who stick with Ruto including in Kalejnin - became untouchable - because they deliver. Do an excellent job given a chance, wacha pombe mingi, work hard and you'll be like Ruto.
Raila simply is no match to Ruto. His strategy if I was him would to chafua hewa by making all sort of corrupt allegations against Ruto. Kucheza rough basically.