walk key wisconsin? i know it's 20 miles west of us. explain exactly who exactly is allowed to show up at these caucuses tonight. >> shep, you are got it right, it is walk keen. it is one of the spots. it a spot, a church seats more than 900 people. they are -- if you show up here with the proper i.d. and precinct you can register on the spot to become a republic and voting within minutes. shep? >> shepard: how important is the ground game? traditionally it has been very important in iowa. but have all these debates and all the television changed that? >> well, political insiders here say it is all about the ground game whether a candidate has been building it for weeks or for months. they say it's going to show through tonight. we talked with tim albrecht from the governor's office. here is some insight from him. >> that's where organization