JOHANNESBURG -Solidarity is taking President Cyril Ramaphosa and Minister in the Presidency Khumbudzo Ntshavheni to court.
The union accuses them of defamation for what they call false claims of disinformation and treason.
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Solidarity and AfriForum were widely blamed for falsehoods around white genocide and racism in South Africa.
US President Donald Trump used propaganda campaigns to attack the country and withdraw funding.
Solidarity says government is to blame for the tensions, saying they visited to raise concerns over minority rights and the AGOA trade deal.