Polish President Lech Kaczynski (c) holds the EU's Lisbon Treaty as Polish President Donald Tusk (L), Sweden's Prime Minister Fredrik Reinfeldt (2ndL), whose country holds the EU rotating presidency, President of the European Commission Jose Manuel Barroso (2ndR), President of European Parliament Jerzy Buzek (R) stand behind at the presidential palace in Warsaw October 10, 2009. Lech Kaczynski signed the European Union's reforming Lisbon Treaty in a ceremony Saturday, leaving his ultra-eurosceptic Czech counterpart Vaclav Klaus as the only holdout.