At one point one of the smallest parties in Parliament, it became the fourth-largest political party in Norway for the first time in the 2001 parliamentary election, and remained so until 2013. In 2005, the party became a governing party for the first time, participating in the Red-Green Coalition with the Labour Party and the Centre Party; before that, SV was frequently turned down by the Labour Party. Following the 2013 election, the party was reduced to the seventh-largest party, and became a part of the opposition.