up. 40 delegates are up for grabs. it is certainly one of the most influential prizes. aishah hasnie is here in des moines. she has more. hi, aishah. reporter: hi, guys, good to see you here in des moines. and, yes, that weather really ate up a lot of that critical campaign face to face time for these candidates which is why all four, the top four, are on the campaign trail hitting the ground hard and shaking those hands. that includes former president trump. he had to cancel three rallies over the weekend. he is out on the trail today taking the stage at a rally in indianola any moment now. he met earlier today with a bunch of volunteers. governor ron desantis also holding a campaign event in dubuque right now. he canceled an event in sioux city, but he will be in in cedar rapids and an kenney later toda. vivek ramaswamy is about to speak in ames, he s got a full schedule as a well.