A year into office, leader faces tests on growth, taxes, markets and diplomacy.

A year into office, leader faces tests on growth, taxes, markets and diplomacy. Japanese Prime Minister Sanae Takaichi prepares for a press conference at the prime minister's office in Tokyo on Sept. 17. (Photo by Akira Kodaka) TOKYO -- Japanese Prime Minister Sanae Takaichi has now, as of Wednesday, been in office for one year -- 12 eventful months that have included a landslide election victory, deteriorating relations with China, a global energy crisis, financial-market turmoil and a ministerial resignation.