luchog
Neo-Post-Retro-Revivalist
I understand some of the people who wouldn't vote for Hillary because she is insufficiently ideologically pure would stay home. Republicans would love that too. Their only real hope of winning the election is if lots of people on the left don't vote for Hillary. Does not matter to them whether those people stay home or vote third party.
I disagree; as I don't think the far-left alone is sufficient to swing a general election. What will swing the general election is if Hillary fails to motivate both the far left and the Independent/Unaligned voters; both of which are skewing overwhelmingly toward Bernie at this time.
She'll most likely lose the far-left to third-party protest votes. Whether she can motivate the middle voters will depend greatly on how she manages her campaign, and whether she's up against Trump or Cruz. Against an establishment politician like Cruz, there's a chance that she's conservative enough to pull some of the middle aware from him, due to his strong Religious-Right position. Against Trump's populism, the diddle will be too much of a wild card, and will likely split, with the more conservative-leaning likely to vote for anti-establishment Trump against an establishment candidate like Clinton. Without the support of the far-left, this is likely to give the presidency to Trump.
Bernie's support among the far-left and middle would give him an advantage over any of the establishment Republicans; and his populist, anti-establishment politician would be much stronger against Trump than Clinton will be. Add to that, a Trump candidacy will see a significant percentage of the moderate Republicans switching sides to Sanders (a number having already announced they would vote for Sanders over Trump), which they seem to be less likely to do with Clinton.
I think the key motivator in this election is going to be less the Right/Left, Liberal/Conservative split; and more the populist/establishment split. That's certainly how the trends have been going in both parties, GOP especially.