The Landtag is elected via
mixed-member proportional representation. 35 members are elected in
single-member constituencies via
first-past-the-post voting. 34 members are then allocated using compensatory proportional representation. Voters have two votes: the "first vote" for candidates in single-member constituencies, and the "second vote" for
party lists, which are used to fill the proportional seats. The minimum size of the Landtag is 69 members, but if
overhang seats are present, proportional
leveling seats will be added to ensure proportionality. An
electoral threshold of 5% of valid votes is applied to the Landtag; parties that fall below this threshold, and fail to win at least one constituency, are ineligible to receive seats. Parties representing the
Danish minority of Southern Schleswig and the Frisians, such as the
South Schleswig Voters' Association, are exempt from the threshold. However, they are not guaranteed representation, they must still win enough votes to qualify for at least one mandate (with 69 seats, this means , or about 1.4% of the vote). ==Presidents of the Landtag==