Gusii is clan based politics.
More so in Kisii County - Nyamira is full admixture being a settlement scheme.
Gusii clans - the main ones -Kitutu , Mugirango, Majoge, Wanjare , Bassi, and Nyaribari.
You need to split Gusii essentially into two Gusii Central or proper- Kitutu-Nyaribabri (related clan or dialect) - and former Gucha (mostly Mugirangos)
Onyoka/Ongwae come from Gitutu/Kitutu - Ongeri/Nyachae come from Nyaribaris - both are related and are Gusii Central or Gusii proper.
Then you move to Gucha - from Mungirangos & Bobasi - you find Obures, Magaras, Nyamweyas, Aratis. They Guchas generally speak a different dialect of Gusii with lots of Maasai and Luo influence.
There are so many candidates it impossible to tell who will win.
Azimios has many - these are the strongest
Arati
Obure
Ongeri
Nyamweya -
While UDA got Machogu to do a deal with Magara - seem Charles Nyachae has gone silent.
Considering how clan based Gusii are - and see most of the candidates are from Gucha- except Ongeri.
It wont suprise me if Gusii elected that old fossil (now 83yrs) as their governor.
But it's anybody game until they start doing negotiated democracy. Ongera of ODM has quit already
Arati seem the favourite to clinch ODM ticket - and has deal with Onyonka.
But you never know with ever quarrelsome Gusiis (Matiangi aliona moto when his candidate came 3rd after ODM & UDA) ....Arati, Ongeri, Obure and Machuga all need to score 30 percent to win it.
Generally speaking Gusii politics are the most difficult to predict.. Last election I got Nyamira totally off by 15-20 percent - as Uhuru moved from 33 percent to beat Raila at 55 percent.
Jubilee also did very well in Kisii proper.
ODM that was as ever bullish - didnt get a single Gusii MP - only Arati in Nairobi - but they got governors, senators and women rep.
Matiangi although he was deflated in Borabu by-election is going to help Raila reverse the gains that Ruto made in 2017.
I see Ruto getting 1/3 with Raila takign 2/3...but until the votes are counted....nobody can predict with certainty how Gusiis will vote.
Magara now wants to be senator,looks like guess work.Onyonka will trash him by 6Am.