Even if she didn't write her own speech...
Consider this...
Nolan Ryan did not invent the fastball.
But he delivered it better than anyone in history.
I used to attend Astro games when I lived in that area. The sound of a NR fastball into the mitt of his catcher was a sound so different from the others on their staff, or of their opponents. The games I mention were seen in the Astrodome. It was a sound only an NR fastball could make, which you could hear anywhere in the stadium, geesh, even in the rest room.
Last night, that speech was akin to hearing a NR fastball. You knew you were hearing something "different".