Zimbabwe's ruling Zanu-PF party has summoned its MPs to discuss the future of its leader, President Robert Mugabe, after a deadline for his resignation ended today. <br/><br/>The deadline was set by Mr Mugabe's own party, Zanu-PF. <br/><br/>The embattled leader surprised Zimbabweans yesterday, declaring on TV that he planned to remain as President. <br/><br/>Zanu-PF says, it backs impeachment and proceedings could begin tomorrow when parliament meets.<br/><br/>In a draft motion, the party blamed the President for what it called an unprecedented economic tailspin. <br/><br/>The public has poured on to the streets in protest in recent days, calling for the end of Mr Mugabe's 37-year presidency. <br/><br/>His grip on power has weakened considerably since the country's army intervened on Wednesday in a row over who should succeed him.<br/><br/>The crisis began two weeks ago when the 93-year-old leader sacked his deputy Emmerson Mnangagwa, angering army commanders who saw it as an attempt to position his wife Grace as next President.