 if their life is going to be in danger. Kaufman says he won't be changing today's speech, which was written last week. He says he'll stay on message, talking about the importance of the Iowa caucuses in the presidential nominating process. Forecasters say heat indices in far southwest Iowa may reach 112 degrees later today, and an extreme heat warning is posted through 8 o'clock tonight for five counties in the region, Pottawatomie, Mills, Montgomery, Fremont, and Page. This is Radio Iowa.