day. it's going to be negative 28 windchill. and so what we hope is they will wear layers, that they will bring their photo i.d., and they will come out and caucus. >> nobody can forecast what the turnout is going to be. anyone that tells you they can do that is not being honest. it's a major wild card and will affect that in some way. you will never have an opportunity to have your vote count more than on monday night. so if you care about the future of the country. if you believe in us, come out and do it and you won't regret it. >> we have team coverage tonight with cnn's jessica dean who is live in a very chilly, maybe fridged des moines. chad myers is warn in the weather center with the forecast ahead. we have two presidential campaign veterans with their predictions here as well. jessica dean, we'll start with you. donald trump is canceling many of these iowa rallies this weekend. what's the campaign saying about how that could affect what