I didn't see anything in that article that was definitive proof that blue collar workers are voting against their own interests.

If you give a tax break to the rich, how is that against your own interests? You still have the same money you did before.

If everyone around me gets wealthier and I stay the same, I'm worse off economically, because all that new wealth affects the price of everything. Look at what happens to prices when an area becomes gentrified.

> identify more with the upper class rather than their own class and voting against their own interests.

points pretty clearly at conservative blue-collar workers voting for republicans, no? Although I guess if someone were to actually believe that raising the minimum wage or curtailing payday loans is bad for the working class, then possibly...with enough bending...and some trickle-down, you could come to the opposite conclusion, yes.