Yes it strange that Kambas and GEMA never see eye to eye - it almost comical difference - because they are essentially one people to me.
If GEMA and Kambas had found a working arrangement they would have ruled kenya almost forever.
For some reason deep GEMA despise Kambas - and Kambas resents GEMA
I guess it way Kalenjin-Luo relate - Kalenjin have no issues with other nilotes or even bantus - but despise Luos for refusing to cut.
Anyway now real politik of 2022
Three scenarios - with two plausible one for Kalonzo
He backs Raila but this time even get worst deal - despite being promised he will become candidate twice if raila win or lose - now gets at best 1/3 of the pie.
He runs alone and try to pull 2007 - upping his stake - for post-election deal.
He backs Ruto for a quarter of the pie.
Worse scenario for Ruto is Kalonzo running alone - he will get at least 70 or even 80 percent of kamba vote - the remainder 20-30 percent will be shared btw Ruto and Raila.
Raila will get suck in 30s (38 percent) - Ruto will lose 1 percent from 54-55 percent.
Best case scenario for both Raila and Ruto - is for Kalonzo to back either one of them.
If he backs Raila - Ruto will improve in Ukambani to even 30 or even possible revolt of 40 percent.
Kamba people like Luhya are fatigued by voting Raila and losing...even Luos are tired.
Raila need kalonzo to get to 45 percent - he has to do everything to win him over.
If I was Kalonzo I would demand some serious money like 10B kshs....from Azimio brigade.
If not - run solo - and preserve kamba constituency for future use.
Biggest caveat in all this scenario is Uhuru staying the Azimio and seriously working on Raila campaign - otherwise Ruto will be looking at 60 percent plus.2017 Suprisingly Uhuru did well in Kitui and Machakos gathering 18 % of the votes . In Makueni he gathered 8%.
This is bearing in mind Kalonzo was a DP candidate and also the feeling of betrayal that Kambas had after Kibaki and ICC where Kalonzo stood up for GEMA and Uhuru and in return Kambas thought Kalonzo will handed over the baton.
Kambas have some form of competition with their cousins GEMA going back to pre independence era. Thats why apart from 2002 when there were 2 GEMA candidates they have always been voting the opposite direction.
Now without a GEMA candidate and with Raila fatigue expect Ruto to get 30 % of the vote. Ruto needs to energize the AIC networks and a substantial number of voters will heed call of the church. Moi used that and Ruto used that in 2010. He will reap big.