The Democratic Republic of Congo's Constitutional Court has approved a controversial referendum law that critics say could open the door for President Félix Tshisekedi to seek a third term in office, despite the constitution capping presidents at two five-year terms. The court ruled the legislation constitutional, though it objected to provisions that would have allowed the president to call a referendum on any matter deemed of "fundamental" importance; the law, as approved, would permit constitutional changes through a constituent assembly and referendum in the event of a "major dysfunction" of state institutions. The bill, passed by parliament where Tshisekedi's coalition holds a strong majority, now awaits his signature, and the ruling has deepened political tensions in a country already grappling with renewed fighting by the Rwanda-backed M23 rebel group in its eastern provinces and a growing Ebola outbreak.