A Florida man is accused of threatening to assassinate President Trump.

Police arrested Roger Hedgpeth Saturday outside the White House.

Investigators say Hedgpeth approached a U.S. Secret Service police officer on patrol and said, “I am here to assassinate President Donald Trump.”

He told the officer he planned to do it with a knife, which the secret service officer confiscated after a pat-down search.

According to the secret service, the suspect was a critically-missing endangered person, and a mental health patient.

Hedgpeth was moved to a hospital for a mental health evaluation where he will be held until further notice.