11.   Under the Swiss system, the presidency rotates annually between members of the seven-member federal executive.

12.   The Swiss presidency rotates each year among the seven members of the cabinet.

13.   This is an asset, since by EU tradition the commission presidency must rotate between big and small countries, and the political right and left.

14.   They also take issue with his handling of a vote on a constitutional clause that would have the Nigerian presidency rotate permanently between northerners and southerners.