Official campaigning for the leadership election of Japan's largest opposition party began Saturday, with contenders debating how to work with other parties in a general election expected later in the year and bring about a change of government.The lineup of four candidates vying to lead the Constitutional Democratic Party of Japan in the Sept. 23 vote runs the full spectrum of experience, ranging from former Prime Minister Yoshihiko Noda, 67, former and incumbent party leaders Yukio Edano, 60, and Kenta Izumi, 50, and Harumi Yoshida, 52, a first-term House of Representatives lawmaker.With …READ FULL ARTICLE