[gasport]

Other than Manchin, what other sky-blue Democrat(s) could be peeled off?

[Viennacon]

Begich and Pryor maybe

[fieldmarshaldj]

Don’t use the newspeak, call the Dems what they are. REDS.

[okie01]

Other than Manchin, what other sky-blue Democrat(s) could be peeled off?

If they remain united (a large question, given McCain), the Republicans need five Democrats to cross the aisle.

Aside from Manchin -- who is not up for re-election in 2014 -- there are these red-state Democrats:

Landrieu (LA)
Begich (AK)
Pryor (AR)
Hagan (NC)

Plus, there is the retiring Max "Train Wreck" Baucus (MT).

Jay Rockefeller (WV) and Tim Johnson (SD) are also retiring red-state Democrats, but I doubt they're likely to leave the party line.

Landreiu, Begich, Pryor and Hagan are almost certainly doomed, though, should they support Obamacare. They might even be doomed if they don't, however.