In their comments on the draft opinion, the authorities emphasised that Hungary had chosen the solution of raising the issue of the establishment of constituency boundaries to the highest possible level of legitimacy by having the boundaries drawn by a cardinal law.However, as the Venice Commission has previously stressed, while it is advisable that the rules governing the constituencies’ delimitation are included in a cardinal law, particularly the distribution formula, the inclusion of a detailed list of constituencies in the cardinal law undermines an efficient method of updating the constituencies in respect of the principle of equality of voting rights.^[18] The Commissiontherefore once again recommends refraining from defining the constituencies in a cardinal law.