Some say the country has never been this divided; this polarized. I think it has been this divided before, but conservatives have, historically, rarely been as vocal about it as liberals. Today they're beginning to come out of the closet, they've learned the tactics of groups such as ANSWER (Act Now Stop War End Racism) and adopted some of them to further their own agenda. The advent of talk radio and the internet has allowed many more conservatives to voice their own opinion and frustrations. Like the liberals they've learned to use the internet to mobilize, organize, and to get their own message out.
How this will all play out should John Kerry be elected is anyone's guess. Looking back on the Clinton years I think (though times have changed) that attacks on the CiC and demeaning his position in the face of our enemies is a win/win situation for the Democrats because they may not have to worry about the same kind of hate from the right as comes from the left. Even at the height of Kosovo and Mogadishu few would have compared Clinton to Hitler, but such is pretty mainstream among "peace activists" today.