For a simple reason: A majority of Americans do not think Obama is doing a good job, and they have thought that for a very long time.
Now, let’s be clear. It is not an overwhelming majority of Americans, not by any stretch. We are not in Nixon ’74, Carter ’79, or Bush ’08 territory with Obama. However, we have seen a durable 50-55 percent of Americans either disapprove or at least not approve of his job performance for quite a while.