title: Zimbabwe's ruling ZANU-PF party calls for Mugabe resignation
text: JOHANNESBURG (Reuters) - Zimbabwe s ruling ZANU-PF party called on Friday for President Robert Mugabe to resign, the main state newspaper The Herald reported, the latest sign that the aging leader s authority has collapsed after an army takeover. The newspaper said that ZANU-PF branches in all 10 provinces had met on Friday and had also called for Mugabe s wife Grace to resign from the party.  