In order to convince people that Truman was dressed as President Harry S. Truman (and NOT as Harry Potter), I made sure we had some other identification with us. Not only was he sporting an authentic American flag lapel pin I purchased for him on a recent trip to the Mall of America in Minneapolis, he also accessorized with a replica of the famous "Dewey Defeats Truman" 1948 election outcome as erroneously reported by the Chicago Daily Tribune.
The President was also seen with his Secret Service detail, Tai, who did an excellent job of protecting him all evening.
"Psst! Don't be alarmed, sir, but there's a scary ghost right behind us."
The President's aide adjusts his tie before the briefing:
Even when Secret Service has to go to the bathroom, the President is always protected: