Leading figures in Donald Trump's Republican party have reacted angrily to his latest comments blaming both sides for the violent clashes in Charlottesville, Virginia, on Saturday.
They culminated with a person being killed and many injured when a car hit people opposed to a far-right rally.
Many echoed House Speaker Paul Ryan who said: "White supremacy is repulsive.. There can be no moral ambiguity."
Mr Trump had condemned white supremacist groups on Monday.
But on Tuesday he reverted to his initial reaction.
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The right-wing march had been organised to protest against the proposed removal of a statue of Gen Robert E Lee, who commanded the pro-slavery Confederate forces during the American Civil War. The event drew white supremacy groups.
Violence broke out after they were confronted by anti-fascism groups. A BBC correspondent at the scene described how members of the so-called "alt-right" openly carried rifles and were dressed in full tactical gear. Their leftist rivals threw bottles, rocks and paint. Pepper spray was used by both sides.