The Blogging of the President: 2004
Stirling Newbery is better than anyone I know of, at giving people the really Big Picture.
He identified the 2004 election as a watershed election, similar to 1824, 1860, 1896, 1932, 1968 in the breadth of its implications for the politics, which followed.
Today, he identifies the paramount economic issues underlying the politics. I think he is dead on. We have built an economy on petroleum, and for a variety of reasons, we have to give it up, and fairly quickly.