The vast majority of Trump voters are “traditional Republican” voters, at least in general elections. Many were folks who usually only turned out to vote in the general election, but not in the primary. In other words, they were expanding the pool of Republican primary voters, but not significantly expanding the pool of general election Republicans from “outise the party”.
As a tenured professor in a department looking exactly for this type of "Hacking Professor" I can tell you it may take a year to find talent. Positions in Europe might be even harder to fill. Advantage of our "biking distance from Amsterdam" culture is that anti-establishment mentality and non-conformist hear style of professors is acceptable. Quality research and teaching counts. We have an official CS class called "the Hacking Lab".
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Historians please weigh in: Is there any evidence that the Whigs also volunteered in their own destruction?
The Democrats themselves fell apart in 1860, splitting into Northern and Southern Democrats (running Douglas and Breckinridge, respectively). The split in the Democratic vote meant that Douglas (who was the second-highest popular vote getter) got the electoral votes of only one state, Missouri. This in turn meant that Abraham Lincoln, who wasn't even on the ballot in most Southern states, was able to carry the election, despite a popular vote count < 40% and net favorability ratings that were probably lower than Trump. This led directly to the Civil War.