I was in Secret Service headquarters when they told me about former President Ronald Reagan’s biggest secret.

I write fiction for a living, but in my thrillers, I try to get the details right. So what better way to understand how a President lives for my newest thriller than by spending time with the Secret Service agents who spend so much time with him?

So there I was, on my tour of Secret Service headquarters. The agents had taken me into a small museum they have on the premises. It’s a room lined with photos of Presidents and archival exhibit cases filled with Secret Service artifacts. A newspaper with a “Kennedy Dead” headline. A replica of Lee Harvey Oswald’s rifle. The pistol used to try to kill President Gerald Ford. They even have the actual car door from the limo when Reagan was shot.