Thumbs Down for Chen

Taiwan President Chen Shui-bian has survived an assassin's bullet, massive opposition demonstrations and two legislative recall motions seeking to remove him from office. But after Taiwan High Court prosecutors indicted First Lady Wu Shu-chen on corruption and forgery charges last Friday, Chen now faces the biggest challenge yet to his presidency.

Conventional wisdom has held that Chen could stay in power as long as none of the long-swirling corruption allegations involving friends and family stuck to him or his wife. That scenario has now come to pass. Prosecutors say Wu used others' receipts to falsely claim $450,000 from...