Donald Trump and senior Republican leaders have continued to defend supporters of the president who participated in a caravan that surrounded and harassed a Joe Biden campaign bus on a Texas highway on Friday.

“This story is FALSE,” the president tweeted on Monday, the last day before election day. “They did nothing wrong.”

The FBI confirmed it was investigating the incident, after videos shared on social media sparked widespread safety concerns. Concerns were also raised after convoys of Trump supporters blocked traffic on highways in New York and New Jersey on Sunday.

In Texas, police investigated a car crash at the scene and witnesses reported that some members of the pro-Trump caravan were armed. Nobody was hurt and