Senate rankings: The map expands for Democrats

The presidential primaries are heading towards a not so climactic conclusion and so the time has come to focus some attention on the congressional races. I haven't updated the rankings since January and a lot has changed in the past 5 months, starting with the resolution of contested primaries in Oregon, Nebraska, North Carolina and probably Minnesota. Both parties have gone through final recruitment pushes, with the GOP playing a tragicomedic farce in New Jersey and suffering through one more round of failures in South Dakota and Iowa.

Meanwhile, a number of seats that had remained relatively quiet up to now have been seeing more action in the past few months. In Colorado, Bob Schaffer had been holding unexpectedly strong for most of 2007 but he was hit by a scandal over his ties with Jack Abramoff. In Oregon, the DSCC decided it had to soften Gordon Smith early to have a chance in November and started airing an attack ad against the incumbent. In Minnesota, it was Democrats who took a hit when it was revealed that Al Franken had trouble with taxes. And in Alaska, Mark Begich officially jumped in the Senate race -- though it had been many months that his candidacy had become clear.

But it is the lower ranked seats that created the most wave in the first half of 2008. It has become increasingly apparent that Democrats are successfully expanding the map, putting the dream of a filibuster-proof (however unlikely it still is) back on the table. As poll after poll show that seats like North Carolina, Texas and even Kansas -- not to mention Mississippi and Alaska, which were barely on the table back in the fall but which are not first-tier races on their own right -- are within Democrats' reach, the Senate picture is becoming increasingly nightmarish for the GOP. The NRSC is not in quite as big a financial hole as their House counterpart, but the Republicans have to be prepared to have their resources stretched thin. The DSCC is sending staffers to organize in Oklahoma, a clear sign that they are determined to put as many states in play as possible. For now, they are succeeding beyond even their expectations.

The full and newly-written rankings, with race-by-race descriptions, are available here.