I think the Primaries are going to tear the Democratic base apart aren't they?

[CentralMass]

42. The opinion from that analysis was that the Sanders-Trump voters were not Democrats.

"What kinds of Sanders voters supported Trump?

Perhaps the most important feature of Sanders-Trump voters is this: They weren’t really Democrats to begin with.

Of course, we know that many Sanders voters did not readily identify with the Democratic Party as of 2016, and Schaffner found that Sanders-Trump voters were even less likely to identify as Democrats. Sanders-Trump voters didn’t much approve of Obama either.

In fact, this was true well before 2016. In the VOTER Survey, we know how Sanders-Trump voters voted in 2012, based on an earlier interview in November 2012. Only 35 percent of them reported voting for Obama, compared with 95 percent of Sanders-Clinton voters. In other words, Sanders-Trump voters were predisposed to support Republicans in presidential general elections well before Trump’s candidacy"
....
There were many factors in this loss.
Lije 41,000 fewer votes in Milwaukee tgen in 2012

https://www.motherjones.com/politics/2017/10/voter-suppression-wisconsin-election-2016/
Rigged: How Voter Suppression Threw Wisconsin to Trump
I shortened ny snippet for brevity.

"On election night, Anthony was shocked to see Trump carry Wisconsin by nearly 23,000 votes. The state, which ranked second in the nation in voter participation in 2008 and 2012, saw its lowest turnout since 2000. More than half the state’s decline in turnout occurred in Milwaukee, which Clinton carried by a 77-18 margin, but where almost 41,000 fewer people voted in 2016 than in 2012. Turnout fell only slightly in white middle-class areas of the city but plunged in black ones. In Anthony’s old district, where aging houses on quiet tree-lined streets are interspersed with boarded-up buildings and vacant lots, turnout dropped by 23 percent from 2012. This is where Clinton lost the state and, with it, the larger narrative about the election."

These states were the so called "blue wall". Hillary didn't campaign there.

The election was lost in those three states by less then 80,000 votes abd it was Sander-tRrump voters that are to blane. They were never going to vote for Hillary to begin with.