"Oh we have a madman in the presidency because the Democrats forced Hillary on us"

[karynnj]

25. It is hard to believe that the "purity left" affected the vote for Feingold

I think that Feingold was hurt by the avalanche of RW and Republican ads that attacked him, Hillary and Democrats in general. Feingold is about as pure as you can get and, unlike in 2010 when he turned down DNC money, he was vocal about needing help in the last few weeks. For months, he had been far ahead and then his numbers plummeted with the attack ads. His decline was actually steeper than HRC's in the same time frame. I conjecture that this is because at the Presidential level, there was far less a difference in how much paid and non paid air time there was for the nominee.

I assume your point was that HRC did not get all the people who voted for Sanders in the primaries. One observation is that he did bring in some people who ordinarily would not vote or not vote for a Democrat. It is very possible that two things are both true:
1) Some Sanders' non traditional primary voters voted for Trump
2) HRC got more votes because Sanders was able to convince some of these voters - who were not ours - to vote for HRC.