The Movement of Social Democrats is an opposition political party

Political party

A political party is a political organization that typically seeks to influence government policy, usually by nominating their own candidates and trying to seat them in political office. Parties participate in electoral campaigns, educational outreach or protest actions...

 in Tunisia

Tunisia

Tunisia , officially the Tunisian RepublicThe long name of Tunisia in other languages used in the country is: , is the northernmost country in Africa. It is a Maghreb country and is bordered by Algeria to the west, Libya to the southeast, and the Mediterranean Sea to the north and east. Its area...

. It was the second-largest party in the Chamber of Deputies

Chamber of Deputies of Tunisia

The Chamber of Deputies is the lower chamber of the Parliament of Tunisia, the bicameral legislative branch of the government of Tunisia. It has 189 seats and members are elected by popular vote to serve five-year terms. 20% of the seats are reserved for the opposition. Elections are held in the...

, behind the dominant Constitutional Democratic Rally

Constitutional Democratic Rally

The Constitutional Democratic Rally , also referred to by its French acronym RCD, formerly called Neo Destour then Socialist Destourian Party, was the governing party in Tunisia. The party was suspended by the minister of interior on February 6th awaiting a decision on its dissolution by judicial...

, with sixteen seats.

In 1999

Tunisian general election, 1999

General elections were held in Tunisia on 24 October 1999 to elect a President and Chamber of Deputies. For the first time ever there was more than one candidate in the presidential election. However, the result was a victory for incumbent Zine El Abidine Ben Ali, who reportedly won 99.4% of the...

, it became the largest opposition party, with 13 seats in the Tunisian parliament. In 2001, the then-party leader Mohamed al Mouadda was charged with having formed a pact with the banned Islamist

Islamism

Islamism also , lit., "Political Islam" is set of ideologies holding that Islam is not only a religion but also a political system. Islamism is a controversial term, and definitions of it sometimes vary...

 group Ennahda. At the 2004 parliamentary election

Tunisian general election, 2004

General elections were held in Tunisia on 24 October 2004 to elect a President and Chamber of Deputies. In the presidential election, incumbent Zine El Abidine Ben Ali, was re-elected for a fourth five-year term with 94.49% of the vote. In the Chamber of Deputies elections his Constitutional...

, the party won 4.6% of the popular vote and 14 seats. Their number of seats rose to 16 at the 2009 election

Tunisian general election, 2009

Presidential and parliamentary elections were held in Tunisia on 25 October 2009. Results released on 26 October 2009 indicated a substantial victory for incumbent President Zine El Abidine Ben Ali, who won the reelection for a fifth five-year term, and the governing Constitutional Democratic Rally...

.

The party obtained two seats in the 2011 election.