Sowore voiced his opposition in a post on X on Monday, shortly after the court delivered its ruling.
Reacting to the decision, he argued that political parties that had already concluded their primaries and were preparing for future elections should not be removed from the political landscape.
“I totally condemn the deregistration of political parties that have already concluded their primaries and are preparing for general elections. Such an action is undemocratic and unjustifiable in a multi-party democracy, it shall not stand,” he wrote.
The criticism followed a judgment by Justice Peter Lifu of the Federal High Court in Abuja, which directed the Independent National Electoral Commission (INEC) to deregister five political parties for allegedly failing to meet constitutional requirements for continued existence.
The affected parties are the African Democratic Congress (ADC), Action Peoples Party (APP), Action Alliance (AA), Accord Party and Zenith Labour Party (ZLP).
In the judgment delivered on Monday, the court held that the parties had violated provisions of Section 225 of the Constitution of the Federal Republic of Nigeria.
The constitutional provision empowers INEC to deregister political parties that fail to win elective positions at the federal, state or local government levels.
Justice Lifu ruled that the affected parties no longer satisfied the constitutional conditions required to maintain their registration and consequently ordered the electoral commission to remove them from the list of recognised political parties.