In June 2006, D66 withdrew its support for the coalition in the aftermath of the upheaval about the asylum procedure of Ayaan Hirsi Ali instigated by immigration minister Rita Verdonk. As a result, the Balkenende III caretaker cabinet was formed by CDA and VVD. The ensuing general elections held on 22 November 2006 saw a major advance of the SP, which almost tripled in size and became the third largest party with 17% of the seats, while the moderate PvdA lost a quarter of its seats. At the other end of the spectrum, LPF lost all its seats, while the new anti-immigrant PVV went from nothing to 6% of the seats, becoming the fifth biggest party. This polarisation made the formation negotiations very difficult. The talks resulted in the formation of the social-Christian fourth Balkenende cabinet supported by CDA, PvdA, and the ChristianUnion. This cabinet was oriented at solidarity, durability, and "normen en waarden".