The last general election took place in
2005 in which the LDP, led by popular prime minister
Junichiro Koizumi, received 38.2% of the proportional block votes and 47.8% of the district votes cast (the next largest party, the DPJ, received 31% in the proportional and 36.4% in the district vote). Due to the characteristics of the
Japanese election system, the LDP ended up with 296 seats in the Lower House (61.6%), which enabled Koizumi to complete the privatization of
Japan Post. Since then Japan had three further prime ministers (
Shinzō Abe,
Yasuo Fukuda and
Tarō Asō) who came to power without there being a general election. On September 1, 2008, Yasuo Fukuda abruptly announced he was retiring as leader. Taro Aso won the subsequent
LDP leadership election, which was held on September 22, 2008. Media sources speculated that, in the wake of a recent change in leadership, Prime Minister Taro Aso might call elections in late October or early November 2008 while his popularity was still high. There were expectations that the steady decline and numerous scandals of the LDP might lead to the complete extinction of the party and the creation of a new political system, with actual ideologically coherent parties emerging instead of the current system of a shared interest in power with stark ideological differences. In late June 2009 there were rumours of a planned election date in early August 2009. In
prefectural elections in Tokyo, the LDP again lost a lot of seats and was for the first time since 1965 not the largest party in the prefectural assembly. The next day, Aso confirmed these rumours by calling for an election on August 30, 2009. As soon as the election was called, a campaign was underway by a group of LDP Diet Members to replace Aso as leader. Fully one-third of the parliamentary party (including finance minister
Kaoru Yosano) were reported to have signed a petition calling for an urgent party meeting to discuss the issue. The BBC reported LDP critics of Aso asserting that an election with him still as leader would be "political suicide". Prime Minister Aso dissolved the House of Representatives on July 21, 2009. The official campaign started on August 18, 2009. Former LDP minister
Yoshimi Watanabe announced the foundation of a new party,
Your Party, on August 8, 2009. ==Campaign==