A White House clash over attacks on white farmers in South Africa reopened a bitter fight about race and land, and the pushback showed how sharply the two sides disagree.

• Trump used a press conference with South African President Ramaphosa to play footage of South African politician Julius Malema calling for violence against whites.
• The footage also showed activists vowing to seize land without asking permission.
• The response was to deny that any campaign of killing is happening and to call the claim racist.
• Critics of white South Africans point back to apartheid, suggesting today's violence is payback for a system that ended more than 30 years ago.
• White farmers are leaving the country, citing both violence and race-based laws.

Outlook: The dispute is likely to keep straining U.S.–South Africa relations, with land seizures and refugee claims the next flashpoints.