Trump's new proposal is big win for the working man

Donald Trump proposes something that would be a big win for just about anyone, especially the working class. Trump said he wants to wants to make interest from car loans deductible. That would be really nice, however, the better solution is to keep interest LOW. How come no one is ever pushing for this? Make interest on credit cards, loans, and everything else low - then people would be paying it back FASTER and spending their money on other things. I guess that makes too much sense, right?