I think that economic populism may be the big issue in the next decade or two because there are rumblings on both the left (liberals like Reich) and from the right (conservatives like Buchanan). We've seen some of that on these boards as well from both sides.
A lot of people feel they are NOT better off than they were a decade or two ago. They don't like the idea of everything seemingly made in China. They don't like seeing jobs shipped overseas. I think when the bills for the Iraq war come due (and they will in the next few years), there will be strong demands for many of the Bush tax cuts that benefited the top 10-20% of taxpayers be eliminated.