Jaan Kundla is an independent member of Riigikogu

Riigikogu

The Riigikogu is the unicameral parliament of Estonia. All important state-related questions pass through the Riigikogu...

, formerly (until expulsion) a member of Estonian Centre Party

Estonian Centre Party

The Estonian Centre Party is a centrist, social liberal party in Estonia. Keskerakond is a member of the European Liberal Democrat and Reform Party. It has the largest membership of an Estonian party, with over 12 000 members....

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He had previously been a member of the People's Party Moderates and the leader of the Estonian Pensioners' Party.
Kundla has caught attention by using the Riigikogu member's expense account to buy foodstuffs, including mayonnaise

Mayonnaise

Mayonnaise, , often abbreviated as mayo, is a sauce. It is a stable emulsion of oil, egg yolk and either vinegar or lemon juice, with many options for embellishment with other herbs and spices. Lecithin in the egg yolk is the emulsifier. Mayonnaise varies in color but is often white, cream, or pale...

. He has become unexpectedly important as a potential swing voter after the Estonian Social Democratic Party left the government, leaving a governing coalition consisting of Estonian Reform Party

Estonian Reform Party

The Estonian Reform Party is a centre-right, free market liberal party in Estonia. It is led by Estonian Prime Minister Andrus Ansip, and has 33 members in the 101-member Riigikogu, making it the largest party in the legislature...

 and Union of Pro Patria and Res Publica

Union of Pro Patria and Res Publica

Union of Pro Patria and Res Publica is an Estonian Liberal Conservative political party. It was founded on 4 June 2006 when two conservative parties, Pro Patria Union and Res Publica merged. Up to the 2007 parliamentary elections, the party held 32 seats out of 101 in the Riigikogu and one of...

. In this structure, the two coalition parties hold 50 of 101 Riigikogu seats — a very narrow minority.