Please elaborate Jersey and Montana. IMO, Baucus is (as of right now) in no danger whatsoever.
New Jersey will be a close race because it always is, this is not to say by any stretch I believe the Republicans will win, however, like always they will get there hopes up about the race and it will be competitive, something like a 52-47.
In Montana, I still believe Racicot will jump into this race and make it competitive. Otherwise, cross it off the map.
I wouldn't say last year's election was close at 53-45 but I may be wrong here. Anyway, the last close senate election was 2000 which was 51-47. You're also not going to get a close election here on a presidential year, with the current environment, and no serious GOP senate candidates.
Lautenberg: 58
Doherty: 40
Lautenberg: 55
Estrabrook: 43
Lautenberg: 55
Pennacchio: 42