In the video he extended out is left arm, not his right. Regardless, this case is going nowhere. Secret Service asked her twice to move back from Trump, and she chose to ignore those requests. Anyone aiding a law enforcement officer is not chargeable for assault, as Crowder explained.
“In the video he extended out is left arm, not his right.”
I watched the video several more times, and he clearly extends his left arm. If that were the arm of the supposed grab, it would appear that the bruising should be on the inside of her arm, instead of the outside.
However, there is a point in the video where the supposed grab could have been done with the right hand.
It all happened so quickly, with the contact considerably less than a second, that calling it an “assault” when she never lost her balance, winced, or cried out, seems overdone.