Was It a Wave?

Here's an article that begins to delve into the data regarding the magnitude of the Democratic surge. The Democratic share of the vote, across races, was higher than it was for Republicans in 1994. I'm putting together some data now--that I should be ready to post in a day or so--that looks at incumbents' share of the vote over the past 2 cycles. What will be of interest is how many incumbents (and from where) saw their share of the vote go down substantially. We know of the incumbent defeats. We'll focus on the close calls--and therefore the potential targets for '08.