My word you people who are saying he ignored her or even pushed her are blind or simply disengenious....
It’s very clear he was looking away shaking people’s hands and the music was quite loud....when she fell...
His campaign has gone off the rails, but this is stupid stuff to cast aversions on him...
I'm pretty sure he didn't see it, but have you listened to him lately. He has been saying a lot of stupid things. Aversion appears to be his middle name.