I've posted a couple of times about how old our current Congress is, especially the Senate -- the current 111th Senate is the oldest ever. My last update focused mainly on retirements, and likely replacements. Quick summary: the ten retiring Senators averaged 65 years old; the ten most likely candidates to replace them at that point averaged just under 49 years old, but the next-most-likely winners in those contests averaged 55 years old.
So, what's changed? And how does it affect the superannuated Senate?
Well, the big development is the demise of two ancient Senators, Bennett and Specter.
UT Bennett (76) -> Lee (38) or Bridgewater (46)
PA Specter (80) -> Sestak (58) or Toomey (48)
and the likely loss of a younger one:
AR Lincoln (49) ->? Boozman (59) or Halter (49)
The other big development since I last wrote about this is the decision by Beau Biden to pass on the Delaware race (and I saw he's been released from the hospital today, so that's good news). I thought Bidne had a slight edge over Mike Castle; now Castle, who is 30 years older than Biden, is now a solid (but not unbeatable) favorite. Also, Kay Bailey Hutcheson is has moved from planning to resign when I first visited this issue in October, to possibly resigning in January, to staying put now, so that possibility of getting younger has evaporated.
And while Richard Burr is more likely than not to be re-elected, I should probably mention that he's 54, and the Democrats in the runoff are 64 (Marshall) and 36 (Cunningham).
(I should say that I'm taking ages from various sources, and one or more could be slightly off).
Overall the big news is that Utah and Pennsylvania are major gains for (relative) youth. Arizona, anyone?