HARARE – Zimbabwe’s Senate approved a constitutional amendment bill on Tuesday removing a clause in the constitution on electing vice presidents, a move which the opposition says is intended by President Emmerson Mnangagwa to concentrate power in the presidency.

The Constitution of Zimbabwe Amendment (No. 2) Bill will also extend the tenure of senior judges, who will now be appointed by the president in consultation with the Judicial Service Commission, instead of being subjected to public interviews as is the case now.

The bill, which now goes to President Emmerson Mnangagwa for his assent, was passed by 65 Senators including 11 from the MDC-T, and opposed by 10 other opposition lawmakers. The bill required a two thirds majority – or 54 votes – to pass through the Senate.

The main MDC Alliance, which was controversially stripped of some of its lawmakers before the Douglas Mwonzora-led MDC-T was allowed to fill the vacancies, said the passage of the bill was a “sad day for all progressive Zimbabweans.”

“Mwonzora and his lot joined hands with Zanu PF today to destroy the Constitution. The MDC-T has officially enabled Zanu PF to mutilate the Constitution of Zimbabwe,” the MDC Alliance said in a statement.

Mwonzora notably voted against the bill, but it was all academic after 11 of his loyalists sided with Zanu PF. A ZimLive analysis of the vote showed the 11 Senators to be Piniel Denga, Mildred Reason Dube, Morgan Femai, Jane Chifamba, Gertrude Moyo, Martha Muronzi, Molly Dorothy Ndlovu, Kerina Gweshe, Rosemary Nyathi, Violet Meoketsi and Teti Chisorochengwe.

MDC-T spokesman Witness Dube said: “From our party, mostly women Senators voted for the bill naturally because of the clauses which guarantee women quotas both in parliament and local government.”

In 2013, Zimbabweans voted for a new constitution including a clause stipulating that the vice president should be elected together with the president, but the clause was suspended for 10 years in a compromise between the ruling Zanu PF party and the opposition.

Zanu PF used a combination of purging opposition lawmakers and its own sizeable majority to remove the provision, saying that electing vice presidents as well as the president would create multiple centres of power that could destabilise the government.

The removal of the clause means a president will continue to appoint his or her deputy and that in the event of the president dying in office or being incapacitated, the ruling party will convene to choose a successor.

Mnangagwa’s opponents say that having elected vice presidents would ensure a smooth succession and avoid political instability.

The lack of a clear succession plan in Zanu PF led to a coup in 2017 by the military, which supported Mnangagwa and was opposed to a faction that had coalesced around the wife of the late former leader Robert Mugabe.

Under the changes affecting the judiciary, judges of the Constitutional Court and the Supreme Court will now retire at 75, instead of at 70, and only judges seeking to be appointed to the bench for the first time will undergo public interviews.

Justice minister Ziyambi Ziyambi described the passage of the bill in the senate as a “historic occasion.”

“It now paves the way for us to properly come up with legislation that will give effect to our devolution agenda and this is most welcome… I’m also very elated in that we now can plan for the 2023 elections knowing pretty sure that we have the women’s quota and the youth quota,” Ziyambi said.

The constitutional amendment faces at least one legal challenge by Bulawayo lawyer Nqobani Sithole