US President Donald Trump has defended supporters for their alleged roles in recent deadly street clashes.
He suggested a teen accused of killing two in Wisconsin last week and Trump fans involved in clashes in Oregon on Saturday had acted in self-defence.
He said Joe Biden, his Democratic challenger in the 3 November election, had not specifically disavowed far-left activists accused of civil disorder.
The violence has come amid widespread, largely peaceful anti-racism protests.
Mr Biden, leading in opinion polls ahead of the election, has spoken out against violence, accusing Mr Trump of causing the divisions that have stoked it.
