The European Union's Lisbon treaty has received another setback after Poland's President Lech Kaczynski said he would not be signing the accord. In an interview published on Tuesday Kaczynski said it would be pointless after the Irish 'no-vote'. Earlier Germany's president Horst Köhler said he would not complete his countries ratification before a ruling on the text from Germany's constitutional court. In the meanwhile French president Nicolas Sarkozy, whose country takes over the rotating EU presidency on Tuesday, called for profound changes in the EU. Sarkozy said the main focus of France's presidency would be to win voter confidence and to salvage the Lisbon Treaty which is meant to streamline decision making in the 27-member Union, Deutsche Welle reported.