What did you expect from an agency run by a woman because of gender parity?
Why was a tall man covered by women much smaller than him? How are they supposed to take a bullet for him when their shoulders are much lower than his?
On videos you can see one of those female officers struggle to holster a gun and another one was hiding behind Trump... This is the naked truth the SS was not trained well enough.

Why weren't there any drones watching from above, no helicopters, no nothing. I've read that for active presidents the SS would sweep the place where he was supposed to talk days before and they'd spend the last night on site making sure the place is secure. I guess former presidents and candidates don't get that privilege.