Hillary Clinton has said that Donald Trump is "inciting violence" after he allegedly encouraged members of the gun lobby to assassinate her.
The Republican nominee was widely condemned for his remarks at a rally on Tuesday, which were interpreted by many as incitement to violence against Clinton, his Democratic rival in the presidential race.
Ms Clinton today said that Trump's remarks showed that he did not have the qualities of a president.
Every single one of these incidences shows us that Donald Trump simply does not have the temperament to be president and commander in chief of the United States.
Video report by ITV News Correspondent Martin Geissler
He had said that the Democrat wants to abolish the second amendment - which enshrines the right to bear arms - if she was elected.
“Hillary wants to abolish, essentially abolish, the second amendment,” he told a rally in Wilmington, North Carolina.
“If she gets to pick her judges, nothing you can do, folks. Although the second amendment people, maybe there is, I don’t know. But I’ll tell you what, that will be a horrible day.”
His remarks drew an immediate reaction with one man sitting immediately behind Trump looking visibly shocked.
Trump insists America must protect second amendment
Trump's campaign have insisted that he meant that the gun lobby could vote as a bloc to keep out Ms Clinton.
Trump has denied that any such conversation took place.