After the Zimbabwe Electoral Commission (ZEC) announced the results, Chamisa called a Press conference and described the election results as fabricated and overblown to ensure the incumbent President's victory.
Zimbabwe's Movement for Democratic Change (MDC) alliance moved to court on Friday, August 10, in a bid to overturn the presidential results, which was used to declare the victory of President Emmerson Mnangagwa.
Mnangagwa's inauguration planned for Sunday was postponed until the court makes its ruling.
Chamisa's lawyer Thabani Mpofu said he had asked the Constitutional Court to nullify the July 30 vote and that his court application meant Mnangagwa's swearing-in had been halted. The decision, in this case, would be final.
Zanu-PF has since put together a 12-member legal team to prepare responses to litigation by Mr Chamisa, who has been threatening multi-thronged action ever since he lost, including litigation.
The MDC reported that its foreign lawyers had initially been denied entry into the Constitutional Court on work permit grounds.
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Analysts say that the legal challenge has little chance of success given the courts' historic tilt towards ZANU-PF, which has ruled since independence from British colonial rule in 1980.
Mr Biti is the first senior opposition politician to be detained since Mr Mnangagwa took over from Mr Mugabe.
He faced allegations of inciting the protests last week by proclaiming victory for the opposition.
"Zimbabwe faces a awful threat from a group of people that has no respect for the law", Biti, who was granted bail Thursday, told the court.
Tendai Biti was released earlier today following my intervention.
Consequently, Chamisa wants the chief elections officer compelled to publish in the Government Gazette the order and the declaration of the election of Mr Chamisa to the office of the President of Zimbabwe.
"The United States government is gravely concerned by credible reports of numerous detentions, beatings, and other abuses of Zimbabweans over the past week, particularly targeting opposition activists", State Department spokesperson Heather Nauert said.