The further time gets between the original state of America, American ideals, and what was American government. The further people in office get from America's original state.
It sucks. We'll keep drifting further and further toward...whatever government it is we're becoming. The original plan. Our original state. The Republic that was America was the greatest government in the world without a doubt. Watch what we become. I'm afraid the current administration is transforming our government allot more than people even think could be possible.
While in Japan, Obama mentioned something like, "I'm not worried about the 2012 election" (loosely quoted). Why would he not be concerned about running again? He's arrived. He's where he feels he belongs. He doesn't want to leave that post.