Matt Taibbi discusses "electability" and doesn't really make the point that all the old definitions have been proven false by the fact that You-Know-Who is now in the Oval Office. I agree generally with Taibbi.
There are really two questions about any candidate: Can he or she win? And would he or she make a good president? They're obviously related but I don't think anyone's going to think too hard about the second one this time around.