Zimbabwe's President Robert Mugabe says the coalition government formed in 2008 has "overstayed its welcome" and should be voted out.<br /> <br />Mugabe was addressing the annual conference of his Zanu-PF party. The 87-year-old president has ruled Zimbabwe for 31 years, and says he is prepared to stand again.<br /> <br />Al Jazeera's Haru Mutasa reports Bulawayo, Zimbabwe's second largest city.
