What are you on about? There's been extensive investigation and even congressional hearings. The director of the Secret Service lost her job. And the investigation continues as well. It was a lone gunman. He was a young white man and registered Republican who used his father's AR-15. He was obsessed with guns and gun culture. But, he was such a a poor shot that he'd been rejected by his highschool shooting team. He had been looking for a mass shooting event for either Trump or Biden. They know he'd researched both candidates' campaign schedules online. They know he purchased extra ammo. That rally was his target of opportunity because it was near him. Not only have the shooting and shooter been thoroughly investigated and are still being investigated, the Secret Service and local police security are also under investigation.

Seriously... What???