Passage: Asscher worked as a researcher at the University of Amsterdam from 1996 until 2002. He was elected as a Municipal councillor of Amsterdam on 8 March 2002, he became the Parliamentary leader of the Labour Party in the Municipal council on 3 April 2004. He worked as a associate professor of Intellectual property law at the University of Amsterdam from 1 May 2002 until 1 May 2006. Asscher was the Lijsttrekker (top candidate) for the Labour Party in the 2006 municipal election and became Deputy Mayor and Alderman on 26 April 2006. Following the resignation of Mayor of Amsterdam Job Cohen to run for the Labour Party leadership for the election of 2010, Asscher as Deputy Mayor served as acting Mayor of Amsterdam from 12 March 2010 until 7 July 2010. After the election of 2012 Asscher was appointed as Deputy Prime Minister and Minister of Social Affairs and Employment in the Cabinet Rutte II, serving from 5 November 2012 until 26 October 2017.

Question: In what year was the election held?
2010