Alexandria Ocasio-Cortez in High Dudgeon regarding Shootings at the US Capitol... 60 Years Too Late.
.. According to J.B West, who at the time was Chief Usher of the Truman White House, the President at the time was living across the street at Blair House while the Executive Mansion was renovated— and was startled therein by a ruckus in the shrubs by the sidewalk. In rapid succession, Harry Truman also thought he heard a quick “pop” or two. The President was upstairs at the time, and it was only after the attack and attempted assassination, some minutes later, he learned the truth: White House Police Officer Leslie Collfelt had been grievously injured (who would also tragically die fou...
Source: redstate.com