I don’t necessarily doubt that, but I recall that she spoke. I couldn’t tell if her voice was similar enough to Hillary’s if she was a double.
I know, I’ve tried to find the video of her saying great day whatever but couldn’t. Now I’ll admit, limited time to research this stuff but see if someone can find two photos of her on 9/11, going into event and coming out of Chelsea’s they could put my conspiracy theories to rest. :-)