Zimbabwe's constitution, adopted in 2013 after a long political transition, set limits on presidential tenure to prevent the concentration of power that defined much of the country's post-independence history. The new amendment bill now being debated is widely seen as one of the most consequential constitutional tests since the charter was introduced. At the center of the controversy is a proposal that would allow President Mnangagwa to remain in office beyond the current two-term limit, a move critics say would rewrite the rules to serve the incumbent. President Emmerson Mnangagwa came to power in 2017, after long-time leader Robert Mugabe was removed in a military-backed transition.