NJ is more or less right but I am not sure I'd agree that the Treaty of Lisbon was the same as the Constitution but with a different title. It does make a difference whether it is a "Treaty" (ie, an agreement between member states) or a "Constitution" (which would be a single document that more or less founded the "State" of Europe, equivalent to the US Constitution). A lot of the content was indeed the same, but the effect and status of the two approaches are different.