President of the European Council extended his influence into financial policy, the most important area left to the rotating Council presidency, with the rotating presidency seeing a greater decrease in power than previously planned. Many of the changes introduced with the Lisbon Treaty need concretion through practical implementation by the current actors. The Spanish presidency unsuccessfully tried to challenge the European Council president's prominent post during the first rotating presidency of 2010, while the second half of the year saw a Belgian rotating presidency marked by a weakened caretaker government which did not challenge Herman van Rompuy, himself a Belgian politician. The Belgian rotating presidency
President of the European Council uncertainty". At a press conference after his appointment, Van Rompuy commented: "Every country should emerge victorious from negotiations. A negotiation that ends with a defeated party is never a good negotiation. I will consider everyone's interests and sensitivities. Even if our unity remains our strength, our diversity remains our wealth", he said, stressing the individuality of EU member states. Van Rompuy's first council meeting was an informal gathering in the Solvay Library in Leopold Park, rather than the more usual formal gathering in the Justus Lipsius building nearby. The meeting was called to reflect on long term structural economic problems