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
Reactions to the Panama Papers 2014 due to the "LuxLeaks" tax avoidance scandal (also revealed by the ICIJ), and hoped the extent of the Panama Papers revelations would spur countries to action. In a 2013 letter unearthed by the "Financial Times" to then-president of the European Council, Herman Van Rompuy, the Prime Minister of the United Kingdom David Cameron said that offshore trusts should not automatically be subject to the same transparency requirements as shell companies. Some analysts suggested that these actions may affect the outcome of the referendum on UK membership of the EU. Alaa Mubarak, son of former president Hosni Mubarak, was cited