The fourth Balkenende cabinet was the executive branch of the Government of the Netherlands from 22 February 2007 until 14 October 2010. The cabinet was formed by the Christian-democratic Christian Democratic Appeal (CDA) and Christian Union (CU) and the social-democratic Labour Party (PvdA) after the election of 2006. The cabinet was a centrist grand coalition and had a slim majority in the House of Representatives with Christian Democratic Leader Jan Peter Balkenende serving as prime minister. Labour Leader Wouter Bos served as Deputy Prime Minister and Minister of Finance while Social Christian Leader André Rouvoet served as Deputy Prime Minister and Minister without Portfolio for Health, Welfare and Sport.