Far-right groups, including Proud Boys, clashed with counter-protesters after a largely peaceful march against US president-elect Joe Biden’s election victory on Saturday.
Donald Trump made three passes over the cheering protesters in the Marine One helicopter on his way to the New York annual Army-Navy football game before the violence began.
Trump supporters are alleging widespread voter fraud during the 3 November election without evidence.
Violence flares in Washington as far-right Trump supporters clash with counter-protesters