TOKYO (Reuters) - Japanese Trade Minister Banri Kaieda has the lead in a ruling party race to pick the next prime minister, but a bruising run-off looks likely as chances of a majority win in a first-round vote are slim, media surveys showed on Sunday.
Japan's sixth prime minister in five years faces huge challenges -- a resurgent yen that threatens exports, forging a new energy policy while ending the worst nuclear crisis since Chernobyl, finding funds to rebuild from a devastating March tsunami as well paying for the ballooning social welfare costs of a fast-ageing society.