A record number of Iowans are expected to turn out to caucus for their presidential picks tonight. We speak with Kay Henderson, News Director of Radio Iowa. Immigration reform is one of the top issues on the minds of voters today. We go to Marshalltown, Iowa, a town that finds itself at the center of the debate over immigration after a raid at a meat-packing plant about a year ago resulted in the arrest of 99 suspected illegal immigrants. We also delve into the positions that candidates hold on the issue of immigration. Our guests are Martha Garica, a first time voter and recent American citizen and Lon Walker, police chief of Marshalltown. We also speak to Jonathan Wiesman of the Washington Post for an overview of where candidates stand on immigration reform. While public opposition to the war in Iraq is at an all-time high you wouldn't know it if you went to the traditional hot beds of radicalism: college campuses. Here and Now's Monica Brady-Myerov explains why students hav Less