Silvio Berlusconi, Italy's Prime Minister, has put the final nail in the coffin of the EU's system of six-month rotating presidencies, as his Nazi jibe left Italy's term at Europe's helm in turmoil. A draft constitution for the EU proposes the creation of a semi-permanent president of the European Council who would take the post currently occupied by Mr Berlusconi. Although that was being resisted by small countries, EU diplomats and officials conceded yesterday that the battle to keep the rotating presidency is effectively over, following the Italian premier's extraordinary outburst. "People will draw conclusions from what has happened over...