I don't know man, I'm just glad he's okay.

- looking at it from @Ava points, there are things that stood out.
- though I agree with you, Trump has no reason to stage a shooting, there is no motive.

Hmm.. maybe it was staged by the opposition to look like it's staged but it's not? I'm reading too much into this. 

 Rewarched to whole video, that does not look staged to my (albeit untrained) eyes.
The SS also reacted by the book.