Mostly COTTonLINE wouldn't give you a link to a David Frum piece, these tend to lean left. This Daily Beast article does not do so. Here he shoots straight down the middle.
His topic is why we are depressed about the state of the United States. I've got to say he does a not bad job of rounding up a lot of downers. He even dumps pretty much evenly on both Obama and Romney.
What he leaves out are the cultural downers, the coarsening of the culture. I guess that is where his leftie bias shows. I recommend this article to you, with the proviso that it is depressing. Hat tip to RealClearPolicy for the link.