>> and eva is joining us from des moines. this is not the way the republican presidential field wanted to head into the first big test of the primary. what are they telling supporters to ensure they show up. >> well nikki haley telling iowans to wear their laters and governor desantis saying brave the elements and if they caucus for him tomorrow, that he will work hard for them in the white house. you know, for many months all of these candidates working hard to draw policy contrasts. haley and desantis in particular making this argument that donald trump is too vulnerable in a general election. and has electability issues. for all of that, this contest may come down to the impact of these bitterly cold temperatures. take a listen to how the canes are talking about this weather on the campaign trail. >> they just landed an airline