The man who jumped the White House fence last Friday was on the grounds for 20 minutes before he walked up to the back door of the White House and approached a Secret Service officer saying he had an appointment with the president, according to two Secret Service sources.

Even though the Secret Service’s Uniformed Division searched for the intruder after he set off a series of alarms after jumping multiple fences, they found him only when he walked up to the officer posted at the “C-11” position, the back door of the White House’s South Portico that leads into the dignitary reception area.