Most people vote self interest . It's pretty clear the dems either cater to or pretend to cater to the the best interest of the poor and low wage working person. It's also pretty clear that the repubs either cater to or pretend to cater to the best interest of the rich.
No shocker in their voting patterns.
However the donkephants magician act is to split the high wage working person/middle class into two groups NEITHER of which caters to their best interest. That is the mastery of the dems and repubs campaigns. They certainly don't remain in power based upon their "accomplishments".
Somehow the middle of the country , which should find other parties, perhaps one major third party to represent them instead splinters to the other two based upon empty promises. It is actually quite sickening.