The logo of the G20 South Africa 2025 summit at the IMF/World Bank 2025 Annual Meetings in Washington, D.C., on Oct. 16.

South African leaders are shrugging off Donald Trump’s announcement of a full-scale U.S. boycott of next week’s G20 summit in Johannesburg, after a rambling speech in which the U.S. President appeared to mix up South Africa and South America.

Mr. Trump, in a social-media post, said it was a “total disgrace” that South Africa is host to the G20 summit this year, and he vowed that no U.S. officials would attend.

Two months ago, he had said that Vice-President JD Vance would lead the U.S. delegation at the summit, but his latest announcement cancelled that plan.

South Africa is scheduled to hand the rotating G20 presidency to the United States at the end of the Nov.

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