Reply #111: That is a way for some to justify the fact that he beat other candidates

[Mass]

when many had predicted he would lose.

As some people refuse to accept that he actually won the IA caucus because people could see him face to face rather than rely on the pundits' views, they had to go to the "electability" meme.

However, I strongly disagree with what you say of his record as Senator. You just dont know what you are talking of, obviously. He did a lot better that many would have predicted, because people liked him.
BTW, ask Carter and Mondale (and even Clinton 92) if any Dems could win MA by double digits. You may be surprised.