But will the treaty changes be that black and white?

The British have said no final agreement on treaty changes could be made before then.

Obviously the idea of some limited treaty change in the future might give us that opportunity.

For that to be achieved by treaty change would require the agreement of 26 other states.

It sounds to me as though a treaty change was proposed.

The push for treaty changes has become a vast distraction.

No they could not, that would be illegal without treaty change.

Can they all agree fiscal union without a treaty change?

I do not think that what Europe needs is a decade of discussions about treaty changes.

The mechanism should also be supported by a decision to move forward with a limited and focused treaty change.