Joe will probably bail in any event, if enough GOP moderates get elected, Kirk, Castle, etc. I think the die is pretty cast on that one.
I am going to go out on a limb, and predict he will bail irrespective, assume he has a large enough moderate GOP Senate cohort to commune with.
Assuming Dems are in the majority either way, he'd have far more influence on committees as a member of the majority who constantly threatens to vote with the minority, than as a member of the minority. Especially if they end up giving Dems a one seat margin on committees.
