Robina you keep saying MCAs to prove your point you offer Kiambu impeachment of Waititu as proof. For one there was never 2/3 majority at Kiambu Assembly that day. This is something provable beyond doubt. Second, there are MCAs who hated Waititu but that doesn't mean they are for BBI. Local politics and jealousies also contribute. Third, you heard Maina Kamanda (today's Uhuru's Kuria Kanyingi (henchman) in Mt. Kenya) openly bragging how they organised and executed Waititu impeachment. Fourth, there are those who also truly believed Waititu had to go but do not support BBI.
Am telling you, better believe it, all hell will break loose should be BBI be officially launched with Parliamentary/Regional as its core. For now Governors and all those "at risk of Uhuru/Raila anger" can proclaim their support for BBI but they mean CURRENT VERSION, not the one Raila/Uhuru wants. Current version is largely accepted. Therefore when you confidently proclaim "Governors/MPs/MCAs are defecting be aware there are several dynamics at play.
What is constant is support for Ruto as President. For overwhelming majority. And this is confusing Uhuru/Raila groupings. They are unable to separate acceptance or rejection of BBI to popularity of Ruto.
To answer your question, no there is no defection. Change of tactics. But when BBI version 2 is published then we shall know where chips fall. I understand the two clowns promised US President Trump they will have implemented "new" system within a year. Wacha tuone.
There have been good pointers to tell us the governors are not all in it out of fear. What has intimidated the senators? The Kiambu MCAs?
Their defections are temporary - is that what you mean?