In the ensuing elections in January 2003, the LPF dropped to only five percent of the seats in the House of Representatives. The left-wing Socialist Party (Socialistische Partij; SP) led by Jan Marijnissen became the fourth strongest party in parliament. The centre-right Balkenende II cabinet was formed by the Christian democratic CDA, the conservative liberal VVD, and the progressive-liberal D66. Against popular sentiment, the right-wing coalition initiated a programme of welfare state reforms, health care privatisation, and stricter immigration policies. On 1 June 2005, the Dutch electorate voted in a referendum against the proposed European Constitution by a majority of 62%, three days after the French had rejected the treaty.