Mátyás Szűrös is a Hungarian politician. He served as provisional President of the Republic

Heads of state of Hungary

-Hungarian Revolution of 1848:Parties-Hungarian Democratic Republic :Parties-Hungarian Soviet Republic :Parties-Romanian Occupation :Parties-Kingdom of Hungary :...

 from October 18, 1989–May 2, 1990. His presidency occurred during Hungary's transition from communist to democratic government. He also served as Speaker of the National Assembly of Hungary from March 1989 to May 1990.

He remained a member of the parliament until 2002 as a member of the Hungarian Socialist Party

Hungarian Socialist Party

The Hungarian Socialist Party describes itself as a social democratic party in Hungary. It is the partial successor of the communist Hungarian Socialist Workers' Party , which ruled Hungary between 1956 and 1989. The decision to declare the party a successor of the MSZMP was controversial, and...

, often voting against the party consensus. He quit the party in 2002, joined the newly established New Left Party and ran as their prime minister candidate on the parliamentary elections, but the formation only got 0.1% of the popular votes. In 2003, he joined the Social Democratic Party

Social Democratic Party (Hungary)

The Social Democratic Party often known as the "Historical" Social Democratic Party is a Hungarian political party that emerged following a split within the Hungarian Social Democratic Party in 1989...

and was later elected as the chairman of the party. He resigned his position in 2005.