US President Joe Biden led the condemnation after his election rival Donald Trump was wounded in an apparent assassination attempt at a rally in Pennsylvania on Saturday, in violence that also left a bystander dead. Political leaders on both sides of the aisle slammed the attack minutes after the Republican candidate was rushed off stage by the Secret Service with blood running down his face. "There's no place in America for this kind of violence. It's sick. It's sick. It's one of the reasons why we have to unite this country... We cannot be like this, we cannot condone this," Biden told reporters in an emergency briefing at Rehoboth Beach in Delaware.