He said at a meeting of the European People's Party (EPP) in Marseille, that member countries should be able to ensure that they are able to ratify the Treaty changes, a review is always a complex process, according Mediafax.



"It is essential to guarantee the revised treaty that the European Commission, European Central Bank, the European Court of Justice and European Parliament. A stronger Europe is a Europe needs stronger institutions," said EC President.



Barroso added that "one can say if give a review to ensure the irreversibility of the euro and European integration better and not a fragmented market that is to strengthen the coherence and unity and not create new dividing lines between countries, "write Mediafax.



EU head of government thinks that these conditions can reach a consensus at the European summit which begins tonight.