Flagbearer and founder of the All People’s Congress, (APC) Dr. Hassan Ayariga has said former President John Mahama committed the worst mistake in his life by appointing Madam Charlotte Osei as the Chairperson of the Electoral Commission (EC).

According to him, Mahama did not do Ghanaians any good by appointing Charlotte Osei.

Ayariga said she [Osei] only created mess at the commission.

READ MORE: Charlotte Osei is stupid - Hassan Ayariga

In an interview on Accra-based Kasapa FM, he said "I have nothing against the EC but I have something against her leadership[Chairperson]. And that is why I said this woman is not fit. For God sake and with due respect to former President, that was the last and the worst mistake he made in appointing Charlotte Osei as the Chairperson, and I still stand by that statement."

Some staff of the EC on July 19 filed a petition against the Chairperson calling for a full-scale investigation into alleged misconduct and abuse of office on her part.

READ MORE: Charlotte Osei faces Parliament

She was also accused by her staff for financial malfeasance.

The concerned staff in their petition claim her decision to cancel a contract awarded to Superlock Technologies Limited (STL), a company contracted to supply and manage Biometric Voter Registration machines (BVRs) and the Biometric Voter Devices (BVDs), as well as her directive for the payment of $76,000 to IT firm, Dream Oval, were fraudulent and hence she should be removed from office.

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They have petitioned President Nana Addo Dankwa Akufo-Addo for her removal as well as sent a similar to the Economic and Organised Crime Office asking for investigations into Mrs Osei's stewardship.

In her response, she denied any acts of fraud or financial malfeasance on her part and counter-alleged fraud and corruption against her accusers.