Since lower and middle class consumers will earn less money they will have less credit — and their demand won’t be the main driver of the economy. The rich people however will be more able than ever to get loans from the banks which are looking for lending opportunities. They will pick up the slack from the poor and middle class because they have more savings in the banks.
We can already see this because the average savings is zero but we know the lower and middle class are highly in debt (at least until they default, in which case that money disappears from the system and the foreclosed properties drop in value). Basically there will be a growing disparity between the rich and the poor, unless we are able to reform the educational system and align it more with the jobs that will be needed in 4 years. And that’s a tough thing to do.