Sound trucks blaring political slogans crept through packed city streets on Okinawa. Candidates wearing white sashes emblazoned with their names pressed the flesh of voters at subway stations in Hokkaido. Campaign workers garbed in koala bear costumes roamed a shopping center in Tokyo. Across Japan last week hundreds of politicians scrambled to win voters before the July 6 election. At issue in the balloting will be control of both chambers of the Japanese Diet. Also at stake will be the political future of Prime Minister Yasuhiro Nakasone and his controversial drive to create a new era for postwar Japan.
Throughout the...