Who knows. At least the National Guard aren't some unionized entity owned by the left. At least I don't believe they are.
I imagine Bush is a little worried about the end result though. Do they get in a shoot out? I guess it all depends on who is more loyal to their "boss", and what the political leanings are of the law enforcement involved in the standoff, etc. There's a possibility it could go bad, go nowhere, or the right side would give up. You have to admit it's a pretty big thing to order force against force with both sides having guns and orders they think they have to follow.