According to TechFlow, Elon Musk tweeted: "I fully support President Trump and wish him a speedy recovery. The last time the United States had such a tough candidate was Theodore Roosevelt."

In addition, a witness told the BBC that he had reported a suspicious man with a rifle on the roof to the police and the Secret Service, but was ignored. Musk said that the director of the Secret Service and the leader in charge of the security should resign.