 which was the day of the debate, than Joe Biden did to himself on the day of the debate. Biden says he's returning to the campaign trail next week. Former President Donald Trump campaigns in Michigan tomorrow. Meanwhile, details continue to emerge from the investigation into the attempted assassination of Trump. Here is Ryan Lucas has the latest. Investigators have determined that the gunman Thomas Crook searched online a week before the shooting for the dates of Trump speaking events and the Democratic National Convention.