Katsuya Okada, secretary-general of Japan's main opposition Democratic Party, speaks to journalists as results come in for Japan's lower house election at the party's election headquarters in Tokyo in this August 30, 2009 file photo. Okada is a possible successor to Japanese Prime Minister Yukio Hatoyama after Hatoyama said on June 2, 2010, he and his powerful party No. 2, Ichiro Ozawa, would resign after a slide in the polls threatened their party's chances in an election expected next month. REUTERS/Issei Kato/Files (JAPAN - Tags: POLITICS HEADSHOT)