In Estonia, there is no any referendum on the election of the head of state, but the president is elected by the Riigikogu;[3] a candidate must win a two-thirds supermajority to be elected. If no candidate achieves two-thirds support in the Riigikogu after three rounds of balloting, a special electoral body is convened comprising all members of the Riigikogu and elected representatives of all municipalities (at least one representative per each municipality, but not more than 10 representatives depending on the number of citizens with voting rights residing in the municipality). This body chooses between the two candidates with the largest percentage of votes.