- Japanese Prime Minister Naoto Kan has resigned as head of the ruling Democratic Party of Japan, amid growing complaints about his performance. He came to office in June 2010. During his term, he had made unpopular moves, including an early pledge for a tax increase and handling a diplomatic issue with China in September. Most recently, Kan has been criticized about his response to the March 11 earthquake, tsunami and nuclear plant accident. His departure paves the way for Japan’s sixth leader in five years.