Sometimes you throw a party and nobody can come. In this case, we threw a debate and the whole party couldn't make it. We had hoped to bring you a Republican presidential debate today, but no dice — these are some busy guys. (NPR is trying to reschedule, FYI). We will bring you Democratic hopefuls tomorrow, but this hour, we're going to focus on our absent Republican friends. Especially here in Iowa... The people who attend the Republican caucuses one month from today are elephantine in influence. So, if you're an Iowa Republican, do you plan to caucus? What are the issues that matter most to you?