Sonko is just calling out the bluff of Mombasa politics which is actually dominated by upcountry people then Mijikenda, Swahili and arabs come later. For the last 10 years Joho has pretended to call shots of Mombasa politics where as its the upcountry Luo who have made him have an edge. Sonko might pull a suprise by unifying upcountry voters apart from Luo and with support of Mijikenda defeat Nassir.
As for Hassam Omar He needs to talk to Ruto to be given a Ministerial post.
He wants to oust ODM in Mombasa which is very bad for Raila..I think Ruto might be funding him secretly.secondly.Incase he was to become governor and Ruto president,They would destroy kenyatta business in Mombasa.