Some on this thread have suggested he might have said something totally unacceptable about his family , but we don`t know that . If that is true then especially with the position he holds he would have the full and immediate backing of the law , surely more damaging and lasting than a few cowardly smacks in the face .Yes, there are such circumstances, but we don't know if any such apply here. It certainly doesn't look good - the punch itself is bad enough, but the continued assault on the man on the ground might be a tad harder to justify; that really, really doesn't look good.
The actions he chose in the condition he was in at the time of the unprovoked attack show the true character of the (loosely) man .