It's been bad here lately. In Woodbridge during the last election the Repubs had a big (20 foot x 30 foot) sign along with repub HQ address info, on a major intersection. Someone burned it to the ground about 2 weeks before the election.
In the 2004 elction we had the guy checking us in get arrested because he purposely was going too slow, and taking 10 minutes or so per person. When he was told he needed to check Id's quicker, he started yelling and saying what difference did it make, Everyone here was voting for that Gosh Damn Bush anyways and he was just going to make it hard. Needless to say a police officer showed up and escorted him out.