You're always going to have the extremist bone-heads who break windows and scare people all for nothing... those people are selfish, and just do it to feel satisfaction in knowing that the did something for their cause, but it's a lose-lose... not only does it make them look bad, it makes all republicans look bad.
I was a strong supporter of McCain and registered a Republican. I applaud Obama's victory as it was well-deserved.
On the other side, I think if Obama lost, there would likely be much more rioting, and I can say that because overall the Obama supporters were far more loud and opinionated in voicing their opinions.