It matters not.
I am not going to be one who claims that left and right parties are the same, however, I will say that the points on which the fights are usually picked are not generally relevant.
I put it to you: left vs. right; liberal vs. conservative; Democrat vs. Republican: all of these dichotomies are put before us to keep our eyes off the ball. The most revolutionary thing we can do is build bridges, because doing so breaks the "divide" part of "divide and conquer."
Rush LImbaugh and Michael Moore both serve the same purpose, even if inadvertently. Get emotion out of it; THINK!!. Most importantly, ask yourself what each thing these assholes are doing does to or for you personally and reward only those who act in your best interest. Show the rest of them the door.