New East Lothian SNP leader Lyn Jardine has warned the county faces a democratic "deficit" if Labour are allowed to create another minority administration.
Labour councillors are the biggest elected group after all ten of their nominees won seats at this month's elections and are expected to try and form a minority administration when the council meets for the first time later this month.
However, the previous minority administration appointed a Cabinet which was made up entirely of Labour councillors and able to take some decisions without any input from opposition members.