al jazeera america's political contributor jeannie zado is a professor of sociology. give us a sense of how much is spent this year. >> it's staggering, an estimated $4 billion spent this year on the mid term. the last 13 to 14 days, almost 20 million a day being spent on this campaign. for turnout that might be around 37, 38%. it's hard to even fathom. >> the number keeps climbing each election. why? >> part of it has to do with the supreme court decisions that have allowed this enormous spending. the citizens united decision, 2014, mccutcheon decision, unlimited outside spending by groups, this time around how much are these companies or these organizations going to be spending? and by all accounts it's a lot. >> all right, so we're talking the mid terms now but what about