>> yes, we're very excited. >> reporter: to where mary weaver is baking up a big batch of donkey bars a snack for the democrats. making a big decision smack dab in the middle of her home. one of five places left in iowa where the caucus happens in a living room. >> we have three delegates that will be coming out of this caucus. >> reporter: that means friends and neighbors will gather here and choose one of four groups to join. uncommitted. >> i think nine out of ten people are maybe 90 people out off 100 have their minds made up when they come. >> reporter: it's the fourth time the waveeavers have offered up their home for caucus. why the living room location? for small-town comfort. >> we would be driving like from our home if we went to ogden, it would be 20 miles. so, we're really doing it almost as a convenience for ourselves and our neighbors. >> reporter: the way the democrats caucus by actually