Istanbul (AFP) – Turkey’s ruling party on Saturday submitted a bill to parliament that could expand the powers of President Recep Tayyip Erdogan, a move his opponents fear will lead to one-man rule.

The constitutional change, which has been sought by Erdogan since he became president in 2014, would see Turkey switch to an executive presidency along the lines of the United States or France.

His supporters say it will streamline the political system but it has become the latest polarising issue surrounding the Turkish strongman.

Erdogan has been accused by domestic rivals and foreign critics of increasingly authoritarian rule, especially after an attempted military coup in July.

The drive for the reform comes at a critical time for Erdogan, with a relentless crackdown after the coup straining ties with the West and the Turkish lira currency under severe pressure.

The proposal was presented to parliament, the official news agency Anadolu reported, after months of talks between the ruling Justice and Development Party (AKP) led by Prime Minister Binali Yildirim and the Nationalist Movement Party (MHP).

The MHP is the fourth largest party in parliament but the AKP needs its support for the 330 votes required to call a referendum to approve the issue.

– ‘Beginning of a new era’-

Erdogan said he hoped the bill would receive enough votes in the 550-seat parliament to then put it to the public.

“I hope that it will pass the parliament in a successful vote exceeding 330 to call a referendum,” Erdogan said at a rally in Istanbul. “God willing, it will be the beginning of a new era.”

The AKP has only 316 seats (excluding the speaker of the parliament) and needs at least 14 votes from the MHP to secure a three-fifths majority required to call the referendum.

Deputy Prime Minister Nurettin Canikli said on Friday “consensus had been secured” between the MHP and AKP and a referendum could take place in March, April or May.

The main opposition Republican People’s Party (CHP) and the pro-Kurdish Peoples’ Democratic Party (HDP) vehemently oppose changing the parliamentary system.

HDP co-leader Selahattin Demirtas, who made it a political crusade to oppose the new system, is currently under arrest on charges of terror group links along with nine fellow HDP MPs.

CHP leader Kemal Kilicdaroglu said the changes risked wrecking the parliamentary system that goes back to reforms in the late Ottoman Empire.

“This is a regime change, not a system change,” Kilicdaroglu said

Erdogan became president in August 2014 after more than a decade as premier and immediately revamped an office which had until then had been seen as largely ceremonial.