I too wish he wouldn't have tried the accent. He's done it before and I always dislike it. It wouldn't be a hard plot for heaven's sake. He was raised Colorado but moved to the south when he was 8 years old or something. There you go, southern congressman who doesn't have to do that distracting accent.
Don't get me wrong though, I am still thoroughly enjoying the show. That's just one little thing that bugs me, like a little gnat flying around.