caucuses officially get underway this evening. here in des moines, it is negative 12 degrees right now, and it is not expected to warm up all that much by caucus time. in fact, it will probably start getting cold again by the time we hit 7:00 p.m. local time, and tonight's iowans are going to have to brave dangerous sub zero temperatures if they want to go vote because it is forecast to be the coldest caucus night basically in modern record as you can see from this graph here on your screen. despite these conditions, the iowa republican chairman, jeff kaufman predicted a strong turnout. here's what he said. >> i honestly believe that we're going to have a robust turnout, as long as there's not ice on those roads. iowans know those precautions. they know how to handle that. we're giving advice to all of our chairs, trying to make sure that the lines are inside as they're moving through. this is iowa winter. and in the context of that, this