The fallout started early before even Ruto became MP.
After Y2k critical role in 92 election - Y2k guys became very powerful and had Moi ears.
This concided with time Biwott was publicly out of favour - having being fingered in Ouko death and fired by Moi.
Obviously Biwott was in Kitchen cabinet and running things in Kitchen cabinet -
So there was basically a clash in 1995-1996 - btw Y2k Jirong group of young guys - and Biwott group of Old Kanu.
Biwott won - Y2k were crushed. Biwott bankrupted Jirongo and the young guys - likes of KTN founder Jared Kagwana - Nyamweya
They found their loans being recalled - and contracts cancelled - auctioners on them.
Y2k guys then realized they had made big mistake - they needed to be in parliament - so they can fight the Biwott group.
So Jirongo, Ruto, and many Y2k went for election in 1997 - and most of them won - because frankly they had lots of money.
Immediately they won - they started fighting old KANU - calling for reforms of KANU - it was called KANU A and KANU B.
MOi dismissed them - and told them KANU was old party with structures - and they were speaking opposition language.
Unable to make any headway - Ruto joined Jirongo, Kirwa and Kapten to form UDM.
They had running battles with police for likes two years of 1998 and 1999 - Kapten was killed at some point.
Jirongo claims RUto killed somebody in those violent rallies by snapping the neck

Seeing how he beat Chesire in Statehouse - I cannot put it beyond him - Ruto can be ruthless
At some point - Ruto made friends with Gideon - and he took him to state house - and got him Ass Minister job.
He quit UDM - and slowly they worked on Biwott group (Saitoti).
Biwott plan was simple - Saitoti would be president - he would be VP.
Ruto, Gideon and Uhuru convinced MOi that fake Kikuyu like Saitoti - with BIwott - was bad idea compared to getting real kikuyu Uhuru with Gideon as VP.
Obviously MOi was overjoyed to hear that.
Ruto was the intellectual engine -
He also took Uhurus and Gideon through public speaking - and name it.
The fallout btw Mois and Rutos would happen post 2003 as Ruto took KANU from Gideon/Mois.
And then took that KANU to Raila.
MOis decided to go to Kibaki