The Grand National Assembly would have 600 members instead of the current 550. This is a return to the situation which existed in Turkey under the 1961 Constitution. Yet, at that time, the parliament was bicameral, composed of the National Assembly and the Senate of the Republic. A return to bicameralism would not be surprising, provided that countries with a presidential (the U.S., Mexico, Brazil or Chile) or semi-presidential system (France, Romania or the Russian Federation) often have two chambers, the upper chamber usually possessing special powers to control the executive.69 The re-introduction of bicameralism is however not envisaged in Turkey.