Just listening to some of the comments in the opening segments of the video made my head spin. That's what we're up aginst folks.
Active duty personal are NOT allowed to wear their uniforms or uniform 'items' at political rallies and such, but I don't think that fourm in the video would constitute that.
I think he either is a vetern no longer active duty OR an active-duty service member just wearing his jacket. He said he's a vetern so I'm assuming he's not active-duty any longer.