2012 Data (& Change from 2008) according to exit poll -
PV of 3.3% to Romney from 2008By Education - No college degree - 51% Obama (-1) ( Obama % Change From 2008)
Some college - 49% Obama (-1)
College - 51% Romney (-3)
Postgrad - 55% Obama (-2)
By Income - Under 30K - Obama 63% (-2%) ( Obama % Change From 2008)
30-50K - Obama 57% (+2)
50-100K - Romney 53% (-4%)
100K+ - Romney 54%
No College degree results (of 2008 Battle-ground states) in 2012 & Change from 2008 -Wisconsin - Obama 51% (-4)
Iowa - Obama 52% (-3)
Nevada - Obama 56% (-2)
NH - Obama 50% (-1)
PA - Obama 57% (+3)
Florida - Obama 52% (-2)
Colorado - Obama 54% (+6)
Ohio - Obama 53% (+1)
NC - Romney 53% (-1)
Only Wisconsin swung to the right of the PV & rust-belt states like Ohio & PA actually had non-college educated people swinging towards Obama & Democrats. There is no pattern in the non-college educated rust belt voters showing a big trend away from the Democrats.
Overall Romney 1% swing vs PV swing of 3.4%Under 30K Income results of 2008 Battle-ground states in 2012 & Change from 2008-Wisconsin - Obama 67% (-2)
Iowa - Obama 68% (+5)
Nevada - Obama 68% (-2)
NH - Obama 61% (-8)
PA - Obama 74% (+8)
Florida - Obama 61% (-2)
Colorado - Obama 50% (+4)
Ohio - Obama 55% (-4)
NC - Romney 58% (0)
Overall 2% Romney swing vs 3.2% PV swing. Only Ohio swung to the right of PV while Colorado, Iowa, PA etc swung opposite to the PV swing.
30-50K Income results of 2008 Battle-ground states in 2012 & Change from 2008 -Wisconsin - Obama 57% (-1)
Iowa - Obama 52% (-4)
Nevada - Obama 67% (+9)
NH - Obama 60% (+9)
PA - Obama 61% (+3)
Florida - Obama 57% (-4)
Colorado - Obama 60% (+9)
Ohio - Obama 55% (+2)
NC - Romney 51% (-7)
Overall 2% Swing towards Obama despite 3.4% Romney PV swing ! Only Iowa, Florida, NC swung to the right of national PV. Ohio, Colorado, Nevada, NH swung to the opposite direction of PV Swing.
If you take out average of income under 30K & 30-50K, perhaps only NC will swing to the right of PV swing!
There is no major trend or pattern which says non-college educated & low income people are swinging GOP while rich college educated people are swinging Dem.
It is likely Hillary Clinton's candidacy & campaign along with the Trump phenomena in the GOP which produced an odd result in 2016. Also overall, under 50K income & non-college educated voters on the whole still are massively Dem & is the overwhelming majority of the Democratic base !https://www.nytimes.com/elections/2012/results/president/exit-polls.html?mcubz=0