Maybe I will chime in a bit here.
I did my undergraduate at a small state university (my family was very poor) but did my doctoral work (on fellowships and grants) at an 'elite' university and I have taught at other 'elite' universities as well. Many of my fellow graduate students had done their undergraduate work in the Ivy league (Princeton, Harvard, Dartmouth, Cornell to be exact) or their equivalent (Cambridge, MIT).
I have noted three main differences between undergraduate experience at an 'elite' school and a bad state university: (These conclusions are based on interactions with students and colleagues)
1) 98% of them pay to get into elite universities. That is, they have private high school and middle school educations. Coming from a 'known' high school is a big part of getting admissions into these 'elite' schools. These high schools often omit basic courses (perhaps on WWII?) in order to fluff up transcripts with 'multivariable calculus' and 'advanced organic chemistry'. Then the schools themselves cost $60 - $80k a year to attend (with housing). At the time, this was astonishing to me as my parents struggled to pay off a 30 year loan on a house that cost $15k!
2) Their futures are assured because people who went to X think everyone who ever went to X must also be above the rest. Therefore, straight out of X, they will get jobs with perks and benefits they do not deserve and will make salaries they do not earn. The elite universities keep records of companies run by former graduates. From my understanding, all you need to do is contact one of these companies and tell them you graduated from this university and you will get a job (at the very least, an interview). It is the most effective way to get people to pay that kind of money for an education! Combine this with point 1, and you see that these 'elite' universities are modern day form of the old feudal systems. Mom/Pops has money, power, and connections then passes it onto the child.
3) There are some very gifted people at these universities, they make up about 1% of the class. The rest of the class pays to be there (and/or has influence because their family has gone for generations) and then points to the 1% as people they equal. In fact, little do they know they only equal the top 25% of people at state universities. Those gifted people, rarely, if ever, take courses with regular students in their areas of enlightenment.
I am not surprised at all that they did not know basic facts about WWII. It seems that their education is based largely on 'talking' about X instead of doing X. They have overly burdensome vocabularies which they use incorrectly (because they don't know the meaning of the words they use) simply as a method to try and confuse you into thinking they have a correct argument. This is because, at these schools, you could never admit to not knowing how/why such large words are being used.
In any event, back on topic, the "highly educated" Obama voter sounds like a scam made up by the MSM to try to remove the image of "blue collar" from the democratic party.