what the temperature was over the weekend. that just gives you a sense. it's actually hard to describe how cold it is here. it is becoming a little clearer just who exactly is going to make up the candidate's voter basis. former president donald trump is firming up support with the state's influential evangelicals and college educated conservatives. and nikki haley is bringing in support from independents and crossover democrats. cnn's john berman is joining us live at the magic wall to give us a better sense of what the stakes are and where we should be watching this hawkeye state tonight. >> what is the feels-like temperature of minus 38? i have no idea what minus 38 feels like. it chills me to even think about what it feels like. >> it hurts. it's actually physically painful. >> sounds like it. each of these candidates has a lot at stake but each one has different stakes. let's talk about donald trump. obviously, he's got this expectations issues right now