Buzeki was mainly doing clinker and milk with Bamburi, Simba, etc and Brookside. Those are not affected by SGR. I think he foolish spent a fortune in elections. And now he is against WSR. I think there was a fallout when he tried to get WSR to help him get contracts..but without fertlizers being imported..it was dead end.
Buzeki started having issues immediately after elections of 2018.
Unless you're a drug dealer or a very corrupt politician or big time criminal - don't follow what Ruto, Sonko and Kabogo do; travelling in choppers, dishing out millions...you'll be broke so fast.