What's the "interesting new phenomenon" that this political article elucidates to make it not off-topic?
Flag it if you think it's off-topic, and then something mysterious and not well documented might or might not happen. Personally, I decided it merited neither an upvote nor a flag.
I've been presented with these exact same arguments back in High School, which was in the early 80s. You can skew the numbers to favor Republicans by just choosing the data ranges from when the politicians actually joined office.
In over two decades of being involved in politics in some capacity I've found that the only difference between the two major parties is how they want to legislate control of my life.