They could not break away. It would need a complete reorganisation of local government in Wales. The Welsh Government view is that many councils are already too small and hence the reason why they are forcing collaboration. This is a non-starter.
More top news
Temperatures will tumble under clear skies tonight with a widespread frost developing.
Police found more than 20 cannabis plants, a small amount of cocaine and a prohibited stun-gun at the home of Richard Williams.
Finance Secretary Mark Drakeford and his Scottish and Northern Irish counterparts demand no further public spending cuts in the UK Budget.