check a person s immigration status. arizona s example has encouraged other states, including alabama, to do much the same. jan crawford has been looking into this today. jan? reporter: well, scott, the justices have stepped into one of the most controversial issues dividing america and will decide whether states like arizona can pass tough laws designed to get illegal immigrants out of their sits. arizona officials say they passed the law out of desperation. the federal government wasn t doing enough about the problem of illegal immigration. among its key provisions: the law requires police to check a person s immigration status when he or she is arrested or stopped for another violation. requires all immigrants to get or carry registration papers. and makes it a crime for an illegal immigrant to work or try to get a job. the obama administration sued arizona to block the law and a lower court agreed. the administration also has sued alabama, utah, and south carolina, thre
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