By the way, did you notice how Americans so drastically change? When Obama's poll numbers were in the 60s, the country was a great place of home 'n' change, a post-racial heaven of the new rational man. Now that they are in the 40s, the nation has become a hotbed of stupidity and racism.
That 300,000,000 million people drastically changed their worldview from the enlightenment to the dark ages is, after all, SO much more reasonable an explanation of what is going on than that one man not doing too well in a job he clearly didn't have the experience or skills to do.
Of course, all hope is not lost. If Obama's numbers pick up -- if the democrats do well in the midterm elections or the rest of his presidency is successful or both -- then, once again, it will turn out 300,000,000 Americans are sane and post-racial and loving and cool once more.
After all, that, too, would be so much simpler than the alternative explanation: a politician recovering from a slump when experience shows him how to do things better.