During this second cabinet was also approved a new electoral law. A white paper for a proportional-only electoral system was presented to the Chamber of Deputies on September 13, 2005, only seven months before the 2006 general election. This reform, strongly backed by the Union of Christian and Centre Democrats, proposed a 4% election threshold before a party gained any seats, and a majority bonus of (at least) 340 seats for the winning coalition, the total votes for each coalition being the sum of the votes of those coalition parties which had won at least 4% of the national votes. The new proposal was approved by parliament.